Re-ordering the PDFPresentationMode code so that the "public" functions are placed towards the top of the file
This commit is contained in:
Jonas Jenwald
parent
d5089f42fa
commit
4edee12e92
@ -68,53 +68,6 @@ var PDFPresentationMode = {
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}
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}
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},
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},
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get isFullscreen() {
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return !!(document.fullscreenElement ||
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document.mozFullScreen ||
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document.webkitIsFullScreen ||
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document.msFullscreenElement);
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},
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/**
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* @private
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*/
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_fullscreenChange: function pdfPresentationModeFullscreenChange() {
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var self = PDFPresentationMode;
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if (self.isFullscreen) {
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self._enter();
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} else {
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self._exit();
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}
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},
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/**
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* Used to initialize a timeout when requesting Presentation Mode,
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* i.e. when the browser is requested to enter fullscreen mode.
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* This timeout is used to prevent the current page from being scrolled
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* partially, or completely, out of view when entering Presentation Mode.
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* NOTE: This issue seems limited to certain zoom levels (e.g. 'page-width').
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* @private
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*/
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_setSwitchInProgress: function pdfPresentationMode_setSwitchInProgress() {
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if (this.switchInProgress) {
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clearTimeout(this.switchInProgress);
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}
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this.switchInProgress = setTimeout(function switchInProgressTimeout() {
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delete this.switchInProgress;
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this._notifyStateChange();
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}.bind(this), DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS);
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},
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/**
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* @private
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*/
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_resetSwitchInProgress: function pdfPresentationMode_resetSwitchInProgress() {
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if (this.switchInProgress) {
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clearTimeout(this.switchInProgress);
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delete this.switchInProgress;
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}
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},
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/**
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/**
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* Request the browser to enter fullscreen mode.
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* Request the browser to enter fullscreen mode.
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* @returns {boolean} Indicating if the request was successful.
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* @returns {boolean} Indicating if the request was successful.
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@ -147,6 +100,73 @@ var PDFPresentationMode = {
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return true;
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return true;
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},
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},
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/**
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* Switches page when the user scrolls (using a scroll wheel or a touchpad)
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* with large enough motion, to prevent accidental page switches.
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* @param {number} delta - The delta value from the mouse event.
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*/
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mouseScroll: function pdfPresentationModeMouseScroll(delta) {
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if (!this.initialized && !this.active) {
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return;
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}
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var MOUSE_SCROLL_COOLDOWN_TIME = 50;
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var PAGE_SWITCH_THRESHOLD = 120;
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var PageSwitchDirection = {
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UP: -1,
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DOWN: 1
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};
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var currentTime = (new Date()).getTime();
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var storedTime = this.mouseScrollTimeStamp;
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// If we've already switched page, avoid accidentally switching page again.
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if (currentTime > storedTime &&
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currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME) {
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return;
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}
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// If the user changes scroll direction, reset the accumulated scroll delta.
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if ((this.mouseScrollDelta > 0 && delta < 0) ||
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(this.mouseScrollDelta < 0 && delta > 0)) {
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this._resetMouseScrollState();
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}
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this.mouseScrollDelta += delta;
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if (Math.abs(this.mouseScrollDelta) >= PAGE_SWITCH_THRESHOLD) {
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var pageSwitchDirection = (this.mouseScrollDelta > 0) ?
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PageSwitchDirection.UP : PageSwitchDirection.DOWN;
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var page = PDFViewerApplication.page;
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this._resetMouseScrollState();
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// If we're already on the first/last page, we don't need to do anything.
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if ((page === 1 && pageSwitchDirection === PageSwitchDirection.UP) ||
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(page === PDFViewerApplication.pagesCount &&
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pageSwitchDirection === PageSwitchDirection.DOWN)) {
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return;
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}
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PDFViewerApplication.page = (page + pageSwitchDirection);
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this.mouseScrollTimeStamp = currentTime;
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}
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},
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get isFullscreen() {
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return !!(document.fullscreenElement ||
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document.mozFullScreen ||
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document.webkitIsFullScreen ||
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document.msFullscreenElement);
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},
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/**
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* @private
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*/
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_fullscreenChange: function pdfPresentationModeFullscreenChange() {
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var self = PDFPresentationMode;
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if (self.isFullscreen) {
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self._enter();
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} else {
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self._exit();
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}
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},
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/**
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/**
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* @private
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* @private
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*/
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*/
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@ -160,6 +180,34 @@ var PDFPresentationMode = {
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window.dispatchEvent(event);
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window.dispatchEvent(event);
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},
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},
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/**
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* Used to initialize a timeout when requesting Presentation Mode,
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* i.e. when the browser is requested to enter fullscreen mode.
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* This timeout is used to prevent the current page from being scrolled
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* partially, or completely, out of view when entering Presentation Mode.
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* NOTE: This issue seems limited to certain zoom levels (e.g. 'page-width').
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* @private
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*/
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_setSwitchInProgress: function pdfPresentationMode_setSwitchInProgress() {
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if (this.switchInProgress) {
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clearTimeout(this.switchInProgress);
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}
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this.switchInProgress = setTimeout(function switchInProgressTimeout() {
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delete this.switchInProgress;
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this._notifyStateChange();
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}.bind(this), DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS);
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},
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/**
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* @private
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*/
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_resetSwitchInProgress: function pdfPresentationMode_resetSwitchInProgress() {
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if (this.switchInProgress) {
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clearTimeout(this.switchInProgress);
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delete this.switchInProgress;
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}
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},
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/**
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/**
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* @private
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* @private
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*/
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*/
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@ -222,35 +270,6 @@ var PDFPresentationMode = {
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}
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}
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},
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},
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/**
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* @private
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*/
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_showControls: function pdfPresentationModeShowControls() {
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var self = PDFPresentationMode;
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if (self.controlsTimeout) {
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clearTimeout(self.controlsTimeout);
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} else {
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self.container.classList.add(SELECTOR);
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}
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self.controlsTimeout = setTimeout(function showControlsTimeout() {
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self.container.classList.remove(SELECTOR);
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delete self.controlsTimeout;
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}, DELAY_BEFORE_HIDING_CONTROLS);
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},
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/**
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* @private
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*/
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_hideControls: function pdfPresentationModeHideControls() {
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var self = PDFPresentationMode;
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if (!self.controlsTimeout) {
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return;
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}
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clearTimeout(self.controlsTimeout);
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self.container.classList.remove(SELECTOR);
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delete self.controlsTimeout;
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},
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/**
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/**
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* @private
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* @private
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*/
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*/
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@ -282,51 +301,32 @@ var PDFPresentationMode = {
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},
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},
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/**
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/**
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* Switches page when the user scrolls (using a scroll wheel or a touchpad)
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* @private
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* with large enough motion, to prevent accidental page switches.
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* @param {number} delta - The delta value from the mouse event.
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*/
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*/
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mouseScroll: function pdfPresentationModeMouseScroll(delta) {
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_showControls: function pdfPresentationModeShowControls() {
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if (!this.initialized && !this.active) {
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var self = PDFPresentationMode;
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if (self.controlsTimeout) {
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clearTimeout(self.controlsTimeout);
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} else {
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self.container.classList.add(SELECTOR);
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}
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self.controlsTimeout = setTimeout(function showControlsTimeout() {
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self.container.classList.remove(SELECTOR);
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delete self.controlsTimeout;
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}, DELAY_BEFORE_HIDING_CONTROLS);
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},
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/**
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* @private
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*/
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_hideControls: function pdfPresentationModeHideControls() {
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var self = PDFPresentationMode;
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if (!self.controlsTimeout) {
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return;
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return;
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}
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}
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var MOUSE_SCROLL_COOLDOWN_TIME = 50;
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clearTimeout(self.controlsTimeout);
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var PAGE_SWITCH_THRESHOLD = 120;
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self.container.classList.remove(SELECTOR);
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var PageSwitchDirection = {
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delete self.controlsTimeout;
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UP: -1,
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DOWN: 1
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};
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var currentTime = (new Date()).getTime();
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var storedTime = this.mouseScrollTimeStamp;
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// If we've already switched page, avoid accidentally switching page again.
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if (currentTime > storedTime &&
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currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME) {
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return;
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}
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// If the user changes scroll direction, reset the accumulated scroll delta.
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if ((this.mouseScrollDelta > 0 && delta < 0) ||
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(this.mouseScrollDelta < 0 && delta > 0)) {
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this._resetMouseScrollState();
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}
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this.mouseScrollDelta += delta;
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if (Math.abs(this.mouseScrollDelta) >= PAGE_SWITCH_THRESHOLD) {
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var pageSwitchDirection = (this.mouseScrollDelta > 0) ?
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PageSwitchDirection.UP : PageSwitchDirection.DOWN;
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var page = PDFViewerApplication.page;
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this._resetMouseScrollState();
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// If we're already on the first/last page, we don't need to do anything.
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if ((page === 1 && pageSwitchDirection === PageSwitchDirection.UP) ||
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(page === PDFViewerApplication.pagesCount &&
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pageSwitchDirection === PageSwitchDirection.DOWN)) {
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return;
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}
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PDFViewerApplication.page = (page + pageSwitchDirection);
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this.mouseScrollTimeStamp = currentTime;
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}
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},
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},
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/**
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/**
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