Add page change event listener

ed5e5a4b · TheJoeCoder · 3147763e · ed5e5a4b
Verified Commit ed5e5a4b authored Aug 25, 2024 by TheJoeCoder
--- a/reader/templates/reader/book_read/pdf_viewer.html
+++ b/reader/templates/reader/book_read/pdf_viewer.html
@@ -50,16 +50,26 @@ See https://github.com/adobe-type-tools/cmap-resources
            <div id="toolbarSidebar">
                <div id="toolbarSidebarLeft">
                    <div id="sidebarViewButtons" class="splitToolbarButton toggled" role="radiogroup">
-              <button id="viewThumbnail" class="toolbarButton toggled" title="Show Thumbnails" tabindex="2" data-l10n-id="pdfjs-thumbs-button" role="radio" aria-checked="true" aria-controls="thumbnailView">
+                        <button id="viewThumbnail" class="toolbarButton toggled" title="Show Thumbnails" tabindex="2"
+                                data-l10n-id="pdfjs-thumbs-button" role="radio" aria-checked="true"
+                                aria-controls="thumbnailView">
                            <span data-l10n-id="pdfjs-thumbs-button-label">Thumbnails</span>
                        </button>
-              <button id="viewOutline" class="toolbarButton" title="Show Document Outline (double-click to expand/collapse all items)" tabindex="3" data-l10n-id="pdfjs-document-outline-button" role="radio" aria-checked="false" aria-controls="outlineView">
+                        <button id="viewOutline" class="toolbarButton"
+                                title="Show Document Outline (double-click to expand/collapse all items)" tabindex="3"
+                                data-l10n-id="pdfjs-document-outline-button" role="radio" aria-checked="false"
+                                aria-controls="outlineView">
                            <span data-l10n-id="pdfjs-document-outline-button-label">Document Outline</span>
                        </button>
-              <button id="viewAttachments" class="toolbarButton" title="Show Attachments" tabindex="4" data-l10n-id="pdfjs-attachments-button" role="radio" aria-checked="false" aria-controls="attachmentsView">
+                        <button id="viewAttachments" class="toolbarButton" title="Show Attachments" tabindex="4"
+                                data-l10n-id="pdfjs-attachments-button" role="radio" aria-checked="false"
+                                aria-controls="attachmentsView">
                            <span data-l10n-id="pdfjs-attachments-button-label">Attachments</span>
                        </button>
-              <button id="viewLayers" class="toolbarButton" title="Show Layers (double-click to reset all layers to the default state)" tabindex="5" data-l10n-id="pdfjs-layers-button" role="radio" aria-checked="false" aria-controls="layersView">
+                        <button id="viewLayers" class="toolbarButton"
+                                title="Show Layers (double-click to reset all layers to the default state)" tabindex="5"
+                                data-l10n-id="pdfjs-layers-button" role="radio" aria-checked="false"
+                                aria-controls="layersView">
                            <span data-l10n-id="pdfjs-layers-button-label">Layers</span>
                        </button>
                    </div>
@@ -69,7 +79,9 @@ See https://github.com/adobe-type-tools/cmap-resources
                    <div id="outlineOptionsContainer">
                        <div class="verticalToolbarSeparator"></div>
-              <button id="currentOutlineItem" class="toolbarButton" disabled="disabled" title="Find Current Outline Item" tabindex="6" data-l10n-id="pdfjs-current-outline-item-button">
+                        <button id="currentOutlineItem" class="toolbarButton" disabled="disabled"
+                                title="Find Current Outline Item" tabindex="6"
+                                data-l10n-id="pdfjs-current-outline-item-button">
                            <span data-l10n-id="pdfjs-current-outline-item-button-label">Current Outline Item</span>
                        </button>
                    </div>
@@ -92,14 +104,17 @@ See https://github.com/adobe-type-tools/cmap-resources
            <div class="findbar hidden doorHanger" id="findbar">
                <div id="findbarInputContainer">
                <span class="loadingInput end">
-              <input id="findInput" class="toolbarField" title="Find" placeholder="Find in document…" tabindex="91" data-l10n-id="pdfjs-find-input" aria-invalid="false">
+                  <input id="findInput" class="toolbarField" title="Find" placeholder="Find in document…" tabindex="91"
+                         data-l10n-id="pdfjs-find-input" aria-invalid="false">
                </span>
                    <div class="splitToolbarButton">
-              <button id="findPrevious" class="toolbarButton" title="Find the previous occurrence of the phrase" tabindex="92" data-l10n-id="pdfjs-find-previous-button">
+                        <button id="findPrevious" class="toolbarButton" title="Find the previous occurrence of the phrase"
+                                tabindex="92" data-l10n-id="pdfjs-find-previous-button">
                            <span data-l10n-id="pdfjs-find-previous-button-label">Previous</span>
                        </button>
                        <div class="splitToolbarButtonSeparator"></div>
-              <button id="findNext" class="toolbarButton" title="Find the next occurrence of the phrase" tabindex="93" data-l10n-id="pdfjs-find-next-button">
+                        <button id="findNext" class="toolbarButton" title="Find the next occurrence of the phrase"
+                                tabindex="93" data-l10n-id="pdfjs-find-next-button">
                            <span data-l10n-id="pdfjs-find-next-button-label">Next</span>
                        </button>
                    </div>
@@ -107,15 +122,19 @@ See https://github.com/adobe-type-tools/cmap-resources
                <div id="findbarOptionsOneContainer">
                    <input type="checkbox" id="findHighlightAll" class="toolbarField" tabindex="94">
-            <label for="findHighlightAll" class="toolbarLabel" data-l10n-id="pdfjs-find-highlight-checkbox">Highlight All</label>
+                    <label for="findHighlightAll" class="toolbarLabel" data-l10n-id="pdfjs-find-highlight-checkbox">Highlight
+                        All</label>
                    <input type="checkbox" id="findMatchCase" class="toolbarField" tabindex="95">
-            <label for="findMatchCase" class="toolbarLabel" data-l10n-id="pdfjs-find-match-case-checkbox-label">Match Case</label>
+                    <label for="findMatchCase" class="toolbarLabel" data-l10n-id="pdfjs-find-match-case-checkbox-label">Match
+                        Case</label>
                </div>
                <div id="findbarOptionsTwoContainer">
                    <input type="checkbox" id="findMatchDiacritics" class="toolbarField" tabindex="96">
-            <label for="findMatchDiacritics" class="toolbarLabel" data-l10n-id="pdfjs-find-match-diacritics-checkbox-label">Match Diacritics</label>
+                    <label for="findMatchDiacritics" class="toolbarLabel"
+                           data-l10n-id="pdfjs-find-match-diacritics-checkbox-label">Match Diacritics</label>
                    <input type="checkbox" id="findEntireWord" class="toolbarField" tabindex="97">
-            <label for="findEntireWord" class="toolbarLabel" data-l10n-id="pdfjs-find-entire-word-checkbox-label">Whole Words</label>
+                    <label for="findEntireWord" class="toolbarLabel" data-l10n-id="pdfjs-find-entire-word-checkbox-label">Whole
+                        Words</label>
                </div>
                <div id="findbarMessageContainer" aria-live="polite">
@@ -127,19 +146,26 @@ See https://github.com/adobe-type-tools/cmap-resources
            <div class="editorParamsToolbar hidden doorHangerRight" id="editorHighlightParamsToolbar">
                <div id="highlightParamsToolbarContainer" class="editorParamsToolbarContainer">
                    <div id="editorHighlightColorPicker" class="colorPicker">
-              <span id="highlightColorPickerLabel" class="editorParamsLabel" data-l10n-id="pdfjs-editor-highlight-colorpicker-label">Highlight color</span>
+                        <span id="highlightColorPickerLabel" class="editorParamsLabel"
+                              data-l10n-id="pdfjs-editor-highlight-colorpicker-label">Highlight color</span>
                    </div>
                    <div id="editorHighlightThickness">
-              <label for="editorFreeHighlightThickness" class="editorParamsLabel" data-l10n-id="pdfjs-editor-free-highlight-thickness-input">Thickness</label>
+                        <label for="editorFreeHighlightThickness" class="editorParamsLabel"
+                               data-l10n-id="pdfjs-editor-free-highlight-thickness-input">Thickness</label>
                        <div class="thicknessPicker">
-                <input type="range" id="editorFreeHighlightThickness" class="editorParamsSlider" data-l10n-id="pdfjs-editor-free-highlight-thickness-title" value="12" min="8" max="24" step="1" tabindex="101">
+                            <input type="range" id="editorFreeHighlightThickness" class="editorParamsSlider"
+                                   data-l10n-id="pdfjs-editor-free-highlight-thickness-title" value="12" min="8" max="24"
+                                   step="1" tabindex="101">
                        </div>
                    </div>
                    <div id="editorHighlightVisibility">
                        <div class="divider"></div>
                        <div class="toggler">
-                <label for="editorHighlightShowAll" class="editorParamsLabel" data-l10n-id="pdfjs-editor-highlight-show-all-button-label">Show all</label>
+                            <label for="editorHighlightShowAll" class="editorParamsLabel"
-                <button id="editorHighlightShowAll" class="toggle-button" data-l10n-id="pdfjs-editor-highlight-show-all-button" aria-pressed="true" tabindex="102"></button>
+                                   data-l10n-id="pdfjs-editor-highlight-show-all-button-label">Show all</label>
+                            <button id="editorHighlightShowAll" class="toggle-button"
+                                    data-l10n-id="pdfjs-editor-highlight-show-all-button" aria-pressed="true"
+                                    tabindex="102"></button>
                        </div>
                    </div>
                </div>
@@ -148,12 +174,15 @@ See https://github.com/adobe-type-tools/cmap-resources
            <div class="editorParamsToolbar hidden doorHangerRight" id="editorFreeTextParamsToolbar">
                <div class="editorParamsToolbarContainer">
                    <div class="editorParamsSetter">
-              <label for="editorFreeTextColor" class="editorParamsLabel" data-l10n-id="pdfjs-editor-free-text-color-input">Color</label>
+                        <label for="editorFreeTextColor" class="editorParamsLabel"
+                               data-l10n-id="pdfjs-editor-free-text-color-input">Color</label>
                        <input type="color" id="editorFreeTextColor" class="editorParamsColor" tabindex="103">
                    </div>
                    <div class="editorParamsSetter">
-              <label for="editorFreeTextFontSize" class="editorParamsLabel" data-l10n-id="pdfjs-editor-free-text-size-input">Size</label>
+                        <label for="editorFreeTextFontSize" class="editorParamsLabel"
-              <input type="range" id="editorFreeTextFontSize" class="editorParamsSlider" value="10" min="5" max="100" step="1" tabindex="104">
+                               data-l10n-id="pdfjs-editor-free-text-size-input">Size</label>
+                        <input type="range" id="editorFreeTextFontSize" class="editorParamsSlider" value="10" min="5"
+                               max="100" step="1" tabindex="104">
                    </div>
                </div>
            </div>
@@ -165,73 +194,91 @@ See https://github.com/adobe-type-tools/cmap-resources
                        <input type="color" id="editorInkColor" class="editorParamsColor" tabindex="105">
                    </div>
                    <div class="editorParamsSetter">
-              <label for="editorInkThickness" class="editorParamsLabel" data-l10n-id="pdfjs-editor-ink-thickness-input">Thickness</label>
+                        <label for="editorInkThickness" class="editorParamsLabel"
-              <input type="range" id="editorInkThickness" class="editorParamsSlider" value="1" min="1" max="20" step="1" tabindex="106">
+                               data-l10n-id="pdfjs-editor-ink-thickness-input">Thickness</label>
+                        <input type="range" id="editorInkThickness" class="editorParamsSlider" value="1" min="1" max="20"
+                               step="1" tabindex="106">
                    </div>
                    <div class="editorParamsSetter">
-              <label for="editorInkOpacity" class="editorParamsLabel" data-l10n-id="pdfjs-editor-ink-opacity-input">Opacity</label>
+                        <label for="editorInkOpacity" class="editorParamsLabel"
-              <input type="range" id="editorInkOpacity" class="editorParamsSlider" value="100" min="1" max="100" step="1" tabindex="107">
+                               data-l10n-id="pdfjs-editor-ink-opacity-input">Opacity</label>
+                        <input type="range" id="editorInkOpacity" class="editorParamsSlider" value="100" min="1" max="100"
+                               step="1" tabindex="107">
                    </div>
                </div>
            </div>
            <div class="editorParamsToolbar hidden doorHangerRight" id="editorStampParamsToolbar">
                <div class="editorParamsToolbarContainer">
-            <button id="editorStampAddImage" class="secondaryToolbarButton" title="Add image" tabindex="108" data-l10n-id="pdfjs-editor-stamp-add-image-button">
+                    <button id="editorStampAddImage" class="secondaryToolbarButton" title="Add image" tabindex="108"
-              <span class="editorParamsLabel" data-l10n-id="pdfjs-editor-stamp-add-image-button-label">Add image</span>
+                            data-l10n-id="pdfjs-editor-stamp-add-image-button">
+                        <span class="editorParamsLabel"
+                              data-l10n-id="pdfjs-editor-stamp-add-image-button-label">Add image</span>
                    </button>
                </div>
            </div>
            <div id="secondaryToolbar" class="secondaryToolbar hidden doorHangerRight">
                <div id="secondaryToolbarButtonContainer">
-            <button id="secondaryOpenFile" class="secondaryToolbarButton" title="Open File" tabindex="51" data-l10n-id="pdfjs-open-file-button">
+                    <button id="secondaryOpenFile" class="secondaryToolbarButton" title="Open File" tabindex="51"
+                            data-l10n-id="pdfjs-open-file-button">
                        <span data-l10n-id="pdfjs-open-file-button-label">Open</span>
                    </button>
-            <button id="secondaryPrint" class="secondaryToolbarButton visibleMediumView" title="Print" tabindex="52" data-l10n-id="pdfjs-print-button">
+                    <button id="secondaryPrint" class="secondaryToolbarButton visibleMediumView" title="Print" tabindex="52"
+                            data-l10n-id="pdfjs-print-button">
                        <span data-l10n-id="pdfjs-print-button-label">Print</span>
                    </button>
-            <button id="secondaryDownload" class="secondaryToolbarButton visibleMediumView" title="Save" tabindex="53" data-l10n-id="pdfjs-save-button">
+                    <button id="secondaryDownload" class="secondaryToolbarButton visibleMediumView" title="Save"
+                            tabindex="53" data-l10n-id="pdfjs-save-button">
                        <span data-l10n-id="pdfjs-save-button-label">Save</span>
                    </button>
                    <div class="horizontalToolbarSeparator"></div>
-            <button id="presentationMode" class="secondaryToolbarButton" title="Switch to Presentation Mode" tabindex="54" data-l10n-id="pdfjs-presentation-mode-button">
+                    <button id="presentationMode" class="secondaryToolbarButton" title="Switch to Presentation Mode"
+                            tabindex="54" data-l10n-id="pdfjs-presentation-mode-button">
                        <span data-l10n-id="pdfjs-presentation-mode-button-label">Presentation Mode</span>
                    </button>
-            <a href="#" id="viewBookmark" class="secondaryToolbarButton" title="Current Page (View URL from Current Page)" tabindex="55" data-l10n-id="pdfjs-bookmark-button">
+                    <a href="#" id="viewBookmark" class="secondaryToolbarButton"
+                       title="Current Page (View URL from Current Page)" tabindex="55" data-l10n-id="pdfjs-bookmark-button">
                        <span data-l10n-id="pdfjs-bookmark-button-label">Current Page</span>
                    </a>
                    <div id="viewBookmarkSeparator" class="horizontalToolbarSeparator"></div>
-            <button id="firstPage" class="secondaryToolbarButton" title="Go to First Page" tabindex="56" data-l10n-id="pdfjs-first-page-button">
+                    <button id="firstPage" class="secondaryToolbarButton" title="Go to First Page" tabindex="56"
+                            data-l10n-id="pdfjs-first-page-button">
                        <span data-l10n-id="pdfjs-first-page-button-label">Go to First Page</span>
                    </button>
-            <button id="lastPage" class="secondaryToolbarButton" title="Go to Last Page" tabindex="57" data-l10n-id="pdfjs-last-page-button">
+                    <button id="lastPage" class="secondaryToolbarButton" title="Go to Last Page" tabindex="57"
+                            data-l10n-id="pdfjs-last-page-button">
                        <span data-l10n-id="pdfjs-last-page-button-label">Go to Last Page</span>
                    </button>
                    <div class="horizontalToolbarSeparator"></div>
-            <button id="pageRotateCw" class="secondaryToolbarButton" title="Rotate Clockwise" tabindex="58" data-l10n-id="pdfjs-page-rotate-cw-button">
+                    <button id="pageRotateCw" class="secondaryToolbarButton" title="Rotate Clockwise" tabindex="58"
+                            data-l10n-id="pdfjs-page-rotate-cw-button">
                        <span data-l10n-id="pdfjs-page-rotate-cw-button-label">Rotate Clockwise</span>
                    </button>
-            <button id="pageRotateCcw" class="secondaryToolbarButton" title="Rotate Counterclockwise" tabindex="59" data-l10n-id="pdfjs-page-rotate-ccw-button">
+                    <button id="pageRotateCcw" class="secondaryToolbarButton" title="Rotate Counterclockwise" tabindex="59"
+                            data-l10n-id="pdfjs-page-rotate-ccw-button">
                        <span data-l10n-id="pdfjs-page-rotate-ccw-button-label">Rotate Counterclockwise</span>
                    </button>
                    <div class="horizontalToolbarSeparator"></div>
                    <div id="cursorToolButtons" role="radiogroup">
-              <button id="cursorSelectTool" class="secondaryToolbarButton toggled" title="Enable Text Selection Tool" tabindex="60" data-l10n-id="pdfjs-cursor-text-select-tool-button" role="radio" aria-checked="true">
+                        <button id="cursorSelectTool" class="secondaryToolbarButton toggled"
+                                title="Enable Text Selection Tool" tabindex="60"
+                                data-l10n-id="pdfjs-cursor-text-select-tool-button" role="radio" aria-checked="true">
                            <span data-l10n-id="pdfjs-cursor-text-select-tool-button-label">Text Selection Tool</span>
                        </button>
-              <button id="cursorHandTool" class="secondaryToolbarButton" title="Enable Hand Tool" tabindex="61" data-l10n-id="pdfjs-cursor-hand-tool-button" role="radio" aria-checked="false">
+                        <button id="cursorHandTool" class="secondaryToolbarButton" title="Enable Hand Tool" tabindex="61"
+                                data-l10n-id="pdfjs-cursor-hand-tool-button" role="radio" aria-checked="false">
                            <span data-l10n-id="pdfjs-cursor-hand-tool-button-label">Hand Tool</span>
                        </button>
                    </div>
@@ -239,16 +286,21 @@ See https://github.com/adobe-type-tools/cmap-resources
                    <div class="horizontalToolbarSeparator"></div>
                    <div id="scrollModeButtons" role="radiogroup">
-              <button id="scrollPage" class="secondaryToolbarButton" title="Use Page Scrolling" tabindex="62" data-l10n-id="pdfjs-scroll-page-button" role="radio" aria-checked="false">
+                        <button id="scrollPage" class="secondaryToolbarButton" title="Use Page Scrolling" tabindex="62"
+                                data-l10n-id="pdfjs-scroll-page-button" role="radio" aria-checked="false">
                            <span data-l10n-id="pdfjs-scroll-page-button-label">Page Scrolling</span>
                        </button>
-              <button id="scrollVertical" class="secondaryToolbarButton toggled" title="Use Vertical Scrolling" tabindex="63" data-l10n-id="pdfjs-scroll-vertical-button" role="radio" aria-checked="true">
+                        <button id="scrollVertical" class="secondaryToolbarButton toggled" title="Use Vertical Scrolling"
+                                tabindex="63" data-l10n-id="pdfjs-scroll-vertical-button" role="radio" aria-checked="true">
                            <span data-l10n-id="pdfjs-scroll-vertical-button-label">Vertical Scrolling</span>
                        </button>
-              <button id="scrollHorizontal" class="secondaryToolbarButton" title="Use Horizontal Scrolling" tabindex="64" data-l10n-id="pdfjs-scroll-horizontal-button" role="radio" aria-checked="false">
+                        <button id="scrollHorizontal" class="secondaryToolbarButton" title="Use Horizontal Scrolling"
+                                tabindex="64" data-l10n-id="pdfjs-scroll-horizontal-button" role="radio"
+                                aria-checked="false">
                            <span data-l10n-id="pdfjs-scroll-horizontal-button-label">Horizontal Scrolling</span>
                        </button>
-              <button id="scrollWrapped" class="secondaryToolbarButton" title="Use Wrapped Scrolling" tabindex="65" data-l10n-id="pdfjs-scroll-wrapped-button" role="radio" aria-checked="false">
+                        <button id="scrollWrapped" class="secondaryToolbarButton" title="Use Wrapped Scrolling"
+                                tabindex="65" data-l10n-id="pdfjs-scroll-wrapped-button" role="radio" aria-checked="false">
                            <span data-l10n-id="pdfjs-scroll-wrapped-button-label">Wrapped Scrolling</span>
                        </button>
                    </div>
@@ -256,20 +308,27 @@ See https://github.com/adobe-type-tools/cmap-resources
                    <div class="horizontalToolbarSeparator"></div>
                    <div id="spreadModeButtons" role="radiogroup">
-              <button id="spreadNone" class="secondaryToolbarButton toggled" title="Do not join page spreads" tabindex="66" data-l10n-id="pdfjs-spread-none-button" role="radio" aria-checked="true">
+                        <button id="spreadNone" class="secondaryToolbarButton toggled" title="Do not join page spreads"
+                                tabindex="66" data-l10n-id="pdfjs-spread-none-button" role="radio" aria-checked="true">
                            <span data-l10n-id="pdfjs-spread-none-button-label">No Spreads</span>
                        </button>
-              <button id="spreadOdd" class="secondaryToolbarButton" title="Join page spreads starting with odd-numbered pages" tabindex="67" data-l10n-id="pdfjs-spread-odd-button" role="radio" aria-checked="false">
+                        <button id="spreadOdd" class="secondaryToolbarButton"
+                                title="Join page spreads starting with odd-numbered pages" tabindex="67"
+                                data-l10n-id="pdfjs-spread-odd-button" role="radio" aria-checked="false">
                            <span data-l10n-id="pdfjs-spread-odd-button-label">Odd Spreads</span>
                        </button>
-              <button id="spreadEven" class="secondaryToolbarButton" title="Join page spreads starting with even-numbered pages" tabindex="68" data-l10n-id="pdfjs-spread-even-button" role="radio" aria-checked="false">
+                        <button id="spreadEven" class="secondaryToolbarButton"
+                                title="Join page spreads starting with even-numbered pages" tabindex="68"
+                                data-l10n-id="pdfjs-spread-even-button" role="radio" aria-checked="false">
                            <span data-l10n-id="pdfjs-spread-even-button-label">Even Spreads</span>
                        </button>
                    </div>
                    <div class="horizontalToolbarSeparator"></div>
-            <button id="documentProperties" class="secondaryToolbarButton" title="Document Properties…" tabindex="69" data-l10n-id="pdfjs-document-properties-button" aria-controls="documentPropertiesDialog">
+                    <button id="documentProperties" class="secondaryToolbarButton" title="Document Properties…"
+                            tabindex="69" data-l10n-id="pdfjs-document-properties-button"
+                            aria-controls="documentPropertiesDialog">
                        <span data-l10n-id="pdfjs-document-properties-button-label">Document Properties…</span>
                    </button>
                </div>
@@ -279,84 +338,117 @@ See https://github.com/adobe-type-tools/cmap-resources
                <div id="toolbarContainer">
                    <div id="toolbarViewer">
                        <div id="toolbarViewerLeft">
-                <button id="sidebarToggle" class="toolbarButton" title="Toggle Sidebar" tabindex="11" data-l10n-id="pdfjs-toggle-sidebar-button" aria-expanded="false" aria-controls="sidebarContainer">
+                            <button id="sidebarToggle" class="toolbarButton" title="Toggle Sidebar" tabindex="11"
+                                    data-l10n-id="pdfjs-toggle-sidebar-button" aria-expanded="false"
+                                    aria-controls="sidebarContainer">
                                <span data-l10n-id="pdfjs-toggle-sidebar-button-label">Toggle Sidebar</span>
                            </button>
                            <div class="toolbarButtonSpacer"></div>
-                <button id="viewFind" class="toolbarButton" title="Find in Document" tabindex="12" data-l10n-id="pdfjs-findbar-button" aria-expanded="false" aria-controls="findbar">
+                            <button id="viewFind" class="toolbarButton" title="Find in Document" tabindex="12"
+                                    data-l10n-id="pdfjs-findbar-button" aria-expanded="false" aria-controls="findbar">
                                <span data-l10n-id="pdfjs-findbar-button-label">Find</span>
                            </button>
                            <div class="splitToolbarButton hiddenSmallView">
-                  <button class="toolbarButton" title="Previous Page" id="previous" tabindex="13" data-l10n-id="pdfjs-previous-button">
+                                <button class="toolbarButton" title="Previous Page" id="previous" tabindex="13"
+                                        data-l10n-id="pdfjs-previous-button">
                                    <span data-l10n-id="pdfjs-previous-button-label">Previous</span>
                                </button>
                                <div class="splitToolbarButtonSeparator"></div>
-                  <button class="toolbarButton" title="Next Page" id="next" tabindex="14" data-l10n-id="pdfjs-next-button">
+                                <button class="toolbarButton" title="Next Page" id="next" tabindex="14"
+                                        data-l10n-id="pdfjs-next-button">
                                    <span data-l10n-id="pdfjs-next-button-label">Next</span>
                                </button>
                            </div>
                            <span class="loadingInput start">
-                  <input type="number" id="pageNumber" class="toolbarField" title="Page" value="1" min="1" tabindex="15" data-l10n-id="pdfjs-page-input" autocomplete="off">
+                      <input type="number" id="pageNumber" class="toolbarField" title="Page" value="1" min="1" tabindex="15"
+                             data-l10n-id="pdfjs-page-input" autocomplete="off">
                    </span>
                            <span id="numPages" class="toolbarLabel"></span>
                        </div>
                        <div id="toolbarViewerRight">
                            <div id="editorModeButtons" class="splitToolbarButton toggled" role="radiogroup">
-                  <button id="editorHighlight" class="toolbarButton" hidden="true" disabled="disabled" title="Highlight" role="radio" aria-checked="false" aria-controls="editorHighlightParamsToolbar" tabindex="31" data-l10n-id="pdfjs-editor-highlight-button">
+                                <button id="editorHighlight" class="toolbarButton" hidden="true" disabled="disabled"
+                                        title="Highlight" role="radio" aria-checked="false"
+                                        aria-controls="editorHighlightParamsToolbar" tabindex="31"
+                                        data-l10n-id="pdfjs-editor-highlight-button">
                                    <span data-l10n-id="pdfjs-editor-highlight-button-label">Highlight</span>
                                </button>
-                  <button id="editorFreeText" class="toolbarButton" disabled="disabled" title="Text" role="radio" aria-checked="false" aria-controls="editorFreeTextParamsToolbar" tabindex="32" data-l10n-id="pdfjs-editor-free-text-button">
+                                <button id="editorFreeText" class="toolbarButton" disabled="disabled" title="Text"
+                                        role="radio" aria-checked="false" aria-controls="editorFreeTextParamsToolbar"
+                                        tabindex="32" data-l10n-id="pdfjs-editor-free-text-button">
                                    <span data-l10n-id="pdfjs-editor-free-text-button-label">Text</span>
                                </button>
-                  <button id="editorInk" class="toolbarButton" disabled="disabled" title="Draw" role="radio" aria-checked="false" aria-controls="editorInkParamsToolbar" tabindex="33" data-l10n-id="pdfjs-editor-ink-button">
+                                <button id="editorInk" class="toolbarButton" disabled="disabled" title="Draw" role="radio"
+                                        aria-checked="false" aria-controls="editorInkParamsToolbar" tabindex="33"
+                                        data-l10n-id="pdfjs-editor-ink-button">
                                    <span data-l10n-id="pdfjs-editor-ink-button-label">Draw</span>
                                </button>
-                  <button id="editorStamp" class="toolbarButton" disabled="disabled" title="Add or edit images" role="radio" aria-checked="false" aria-controls="editorStampParamsToolbar" tabindex="34" data-l10n-id="pdfjs-editor-stamp-button">
+                                <button id="editorStamp" class="toolbarButton" disabled="disabled"
+                                        title="Add or edit images" role="radio" aria-checked="false"
+                                        aria-controls="editorStampParamsToolbar" tabindex="34"
+                                        data-l10n-id="pdfjs-editor-stamp-button">
                                    <span data-l10n-id="pdfjs-editor-stamp-button-label">Add or edit images</span>
                                </button>
                            </div>
                            <div id="editorModeSeparator" class="verticalToolbarSeparator"></div>
-                <button id="print" class="toolbarButton hiddenMediumView" title="Print" tabindex="41" data-l10n-id="pdfjs-print-button">
+                            <button id="print" class="toolbarButton hiddenMediumView" title="Print" tabindex="41"
+                                    data-l10n-id="pdfjs-print-button">
                                <span data-l10n-id="pdfjs-print-button-label">Print</span>
                            </button>
-                <button id="download" class="toolbarButton hiddenMediumView" title="Save" tabindex="42" data-l10n-id="pdfjs-save-button">
+                            <button id="download" class="toolbarButton hiddenMediumView" title="Save" tabindex="42"
+                                    data-l10n-id="pdfjs-save-button">
                                <span data-l10n-id="pdfjs-save-button-label">Save</span>
                            </button>
                            <div class="verticalToolbarSeparator hiddenMediumView"></div>
-                <button id="secondaryToolbarToggle" class="toolbarButton" title="Tools" tabindex="43" data-l10n-id="pdfjs-tools-button" aria-expanded="false" aria-controls="secondaryToolbar">
+                            <button id="secondaryToolbarToggle" class="toolbarButton" title="Tools" tabindex="43"
+                                    data-l10n-id="pdfjs-tools-button" aria-expanded="false"
+                                    aria-controls="secondaryToolbar">
                                <span data-l10n-id="pdfjs-tools-button-label">Tools</span>
                            </button>
                        </div>
                        <div id="toolbarViewerMiddle">
                            <div class="splitToolbarButton">
-                  <button id="zoomOut" class="toolbarButton" title="Zoom Out" tabindex="21" data-l10n-id="pdfjs-zoom-out-button">
+                                <button id="zoomOut" class="toolbarButton" title="Zoom Out" tabindex="21"
+                                        data-l10n-id="pdfjs-zoom-out-button">
                                    <span data-l10n-id="pdfjs-zoom-out-button-label">Zoom Out</span>
                                </button>
                                <div class="splitToolbarButtonSeparator"></div>
-                  <button id="zoomIn" class="toolbarButton" title="Zoom In" tabindex="22" data-l10n-id="pdfjs-zoom-in-button">
+                                <button id="zoomIn" class="toolbarButton" title="Zoom In" tabindex="22"
+                                        data-l10n-id="pdfjs-zoom-in-button">
                                    <span data-l10n-id="pdfjs-zoom-in-button-label">Zoom In</span>
                                </button>
                            </div>
                            <span id="scaleSelectContainer" class="dropdownToolbarButton">
                      <select id="scaleSelect" title="Zoom" tabindex="23" data-l10n-id="pdfjs-zoom-select">
-                    <option id="pageAutoOption" title="" value="auto" selected="selected" data-l10n-id="pdfjs-page-scale-auto">Automatic Zoom</option>
+                        <option id="pageAutoOption" title="" value="auto" selected="selected"
+                                data-l10n-id="pdfjs-page-scale-auto">Automatic Zoom</option>
                        <option id="pageActualOption" title="" value="page-actual" data-l10n-id="pdfjs-page-scale-actual">Actual Size</option>
-                    <option id="pageFitOption" title="" value="page-fit" data-l10n-id="pdfjs-page-scale-fit">Page Fit</option>
+                        <option id="pageFitOption" title="" value="page-fit"
+                                data-l10n-id="pdfjs-page-scale-fit">Page Fit</option>
                        <option id="pageWidthOption" title="" value="page-width" data-l10n-id="pdfjs-page-scale-width">Page Width</option>
-                    <option id="customScaleOption" title="" value="custom" disabled="disabled" hidden="true" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 0 }'>0%</option>
+                        <option id="customScaleOption" title="" value="custom" disabled="disabled" hidden="true"
-                    <option title="" value="0.5" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 50 }'>50%</option>
+                                data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 0 }'>0%</option>
-                    <option title="" value="0.75" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 75 }'>75%</option>
+                        <option title="" value="0.5" data-l10n-id="pdfjs-page-scale-percent"
-                    <option title="" value="1" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 100 }'>100%</option>
+                                data-l10n-args='{ "scale": 50 }'>50%</option>
-                    <option title="" value="1.25" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 125 }'>125%</option>
+                        <option title="" value="0.75" data-l10n-id="pdfjs-page-scale-percent"
-                    <option title="" value="1.5" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 150 }'>150%</option>
+                                data-l10n-args='{ "scale": 75 }'>75%</option>
-                    <option title="" value="2" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 200 }'>200%</option>
+                        <option title="" value="1" data-l10n-id="pdfjs-page-scale-percent"
-                    <option title="" value="3" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 300 }'>300%</option>
+                                data-l10n-args='{ "scale": 100 }'>100%</option>
-                    <option title="" value="4" data-l10n-id="pdfjs-page-scale-percent" data-l10n-args='{ "scale": 400 }'>400%</option>
+                        <option title="" value="1.25" data-l10n-id="pdfjs-page-scale-percent"
+                                data-l10n-args='{ "scale": 125 }'>125%</option>
+                        <option title="" value="1.5" data-l10n-id="pdfjs-page-scale-percent"
+                                data-l10n-args='{ "scale": 150 }'>150%</option>
+                        <option title="" value="2" data-l10n-id="pdfjs-page-scale-percent"
+                                data-l10n-args='{ "scale": 200 }'>200%</option>
+                        <option title="" value="3" data-l10n-id="pdfjs-page-scale-percent"
+                                data-l10n-args='{ "scale": 300 }'>300%</option>
+                        <option title="" value="4" data-l10n-id="pdfjs-page-scale-percent"
+                                data-l10n-args='{ "scale": 400 }'>400%</option>
                      </select>
                    </span>
                        </div>
@@ -378,14 +470,17 @@ See https://github.com/adobe-type-tools/cmap-resources
        <div id="dialogContainer">
            <dialog id="passwordDialog">
                <div class="row">
-            <label for="password" id="passwordText" data-l10n-id="pdfjs-password-label">Enter the password to open this PDF file:</label>
+                    <label for="password" id="passwordText" data-l10n-id="pdfjs-password-label">Enter the password to open
+                        this PDF file:</label>
                </div>
                <div class="row">
                    <input type="password" id="password" class="toolbarField">
                </div>
                <div class="buttonRow">
-            <button id="passwordCancel" class="dialogButton"><span data-l10n-id="pdfjs-password-cancel-button">Cancel</span></button>
+                    <button id="passwordCancel" class="dialogButton"><span data-l10n-id="pdfjs-password-cancel-button">Cancel</span>
-            <button id="passwordSubmit" class="dialogButton"><span data-l10n-id="pdfjs-password-ok-button">OK</span></button>
+                    </button>
+                    <button id="passwordSubmit" class="dialogButton"><span data-l10n-id="pdfjs-password-ok-button">OK</span>
+                    </button>
                </div>
            </dialog>
            <dialog id="documentPropertiesDialog">
@@ -415,7 +510,8 @@ See https://github.com/adobe-type-tools/cmap-resources
                    <p id="keywordsField" aria-labelledby="keywordsLabel">-</p>
                </div>
                <div class="row">
-            <span id="creationDateLabel" data-l10n-id="pdfjs-document-properties-creation-date">Creation Date:</span>
+                    <span id="creationDateLabel"
+                          data-l10n-id="pdfjs-document-properties-creation-date">Creation Date:</span>
                    <p id="creationDateField" aria-labelledby="creationDateLabel">-</p>
                </div>
                <div class="row">
@@ -449,10 +545,12 @@ See https://github.com/adobe-type-tools/cmap-resources
                    <p id="linearizedField" aria-labelledby="linearizedLabel">-</p>
                </div>
                <div class="buttonRow">
-            <button id="documentPropertiesClose" class="dialogButton"><span data-l10n-id="pdfjs-document-properties-close-button">Close</span></button>
+                    <button id="documentPropertiesClose" class="dialogButton"><span
+                            data-l10n-id="pdfjs-document-properties-close-button">Close</span></button>
                </div>
            </dialog>
-        <dialog class="dialog altText" id="altTextDialog" aria-labelledby="dialogLabel" aria-describedby="dialogDescription">
+            <dialog class="dialog altText" id="altTextDialog" aria-labelledby="dialogLabel"
+                    aria-describedby="dialogDescription">
                <div id="altTextContainer" class="mainContainer">
                    <div id="overallDescription">
                        <span id="dialogLabel" data-l10n-id="pdfjs-editor-alt-text-dialog-label" class="title">Choose an option</span>
@@ -463,8 +561,10 @@ See https://github.com/adobe-type-tools/cmap-resources
                    <div id="addDescription">
                        <div class="radio">
                            <div class="radioButton">
-                  <input type="radio" id="descriptionButton" name="altTextOption" tabindex="0" aria-describedby="descriptionAreaLabel" checked>
+                                <input type="radio" id="descriptionButton" name="altTextOption" tabindex="0"
-                  <label for="descriptionButton" data-l10n-id="pdfjs-editor-alt-text-add-description-label">Add a description</label>
+                                       aria-describedby="descriptionAreaLabel" checked>
+                                <label for="descriptionButton" data-l10n-id="pdfjs-editor-alt-text-add-description-label">Add
+                                    a description</label>
                            </div>
                            <div class="radioLabel">
                      <span id="descriptionAreaLabel" data-l10n-id="pdfjs-editor-alt-text-add-description-description">
@@ -473,14 +573,19 @@ See https://github.com/adobe-type-tools/cmap-resources
                            </div>
                        </div>
                        <div class="descriptionArea">
-                <textarea id="descriptionTextarea" placeholder="For example, “A young man sits down at a table to eat a meal”" aria-labelledby="descriptionAreaLabel" data-l10n-id="pdfjs-editor-alt-text-textarea" tabindex="0"></textarea>
+                            <textarea id="descriptionTextarea"
+                                      placeholder="For example, “A young man sits down at a table to eat a meal”"
+                                      aria-labelledby="descriptionAreaLabel" data-l10n-id="pdfjs-editor-alt-text-textarea"
+                                      tabindex="0"></textarea>
                        </div>
                    </div>
                    <div id="markAsDecorative">
                        <div class="radio">
                            <div class="radioButton">
-                  <input type="radio" id="decorativeButton" name="altTextOption" aria-describedby="decorativeLabel">
+                                <input type="radio" id="decorativeButton" name="altTextOption"
-                  <label for="decorativeButton" data-l10n-id="pdfjs-editor-alt-text-mark-decorative-label">Mark as decorative</label>
+                                       aria-describedby="decorativeLabel">
+                                <label for="decorativeButton" data-l10n-id="pdfjs-editor-alt-text-mark-decorative-label">Mark
+                                    as decorative</label>
                            </div>
                            <div class="radioLabel">
                      <span id="decorativeLabel" data-l10n-id="pdfjs-editor-alt-text-mark-decorative-description">
@@ -490,8 +595,10 @@ See https://github.com/adobe-type-tools/cmap-resources
                        </div>
                    </div>
                    <div id="buttons">
-              <button id="altTextCancel" class="secondaryButton" tabindex="0"><span data-l10n-id="pdfjs-editor-alt-text-cancel-button">Cancel</span></button>
+                        <button id="altTextCancel" class="secondaryButton" tabindex="0"><span
-              <button id="altTextSave" class="primaryButton" tabindex="0"><span data-l10n-id="pdfjs-editor-alt-text-save-button">Save</span></button>
+                                data-l10n-id="pdfjs-editor-alt-text-cancel-button">Cancel</span></button>
+                        <button id="altTextSave" class="primaryButton" tabindex="0"><span
+                                data-l10n-id="pdfjs-editor-alt-text-save-button">Save</span></button>
                    </div>
                </div>
            </dialog>
@@ -501,15 +608,35 @@ See https://github.com/adobe-type-tools/cmap-resources
                </div>
                <div class="row">
                    <progress value="0" max="100"></progress>
-            <span data-l10n-id="pdfjs-print-progress-percent" data-l10n-args='{ "progress": 0 }' class="relative-progress">0%</span>
+                    <span data-l10n-id="pdfjs-print-progress-percent" data-l10n-args='{ "progress": 0 }'
+                          class="relative-progress">0%</span>
                </div>
                <div class="buttonRow">
-            <button id="printCancel" class="dialogButton"><span data-l10n-id="pdfjs-print-progress-close-button">Cancel</span></button>
+                    <button id="printCancel" class="dialogButton"><span data-l10n-id="pdfjs-print-progress-close-button">Cancel</span>
+                    </button>
                </div>
            </dialog>
        </div>  <!-- dialogContainer -->
    </div> <!-- outerContainer -->
    <div id="printContainer"></div>
+    <script>
+        document.addEventListener("webviewerloaded", () => {
+            PDFViewerApplication.initializedPromise.then(() => {
+                PDFViewerApplication.eventBus.on("documentloaded", (e) => {
+                    console.log("The document has now been loaded");
+                });
+                PDFViewerApplication.eventBus.on("pagechanging", (e) => {
+                    console.log('pagechanging, from ' + e.previous + ' to ' + e.pageNumber);
+                });
+                PDFViewerApplication.eventBus.on("scalechanging", (e) => {
+                    console.log('scalechanging, scale ' + e.scale);
+                });
+            });
+        });
+    </script>
 </body>
 </html>