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Break dependencies between PresentationMode and other code, and add PresentationMode related utility methods to PDFViewer

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This patch:
 - Adds a couple of utility methods to `PDFViewer` to enable checking `presentationModeState` without cumbersome comparisons.

 - Disentangles `PresentationMode` from `PDFHistory` and `HandTool`, by adding event listeners for `presentationmodechanged` to both of them.

 - Adds a utility function to `PDFViewerApplication` for requesting PresentationMode.

 - Prevents initialization of `PresentationMode` if the browser does not support the fullscreen API.
This commit is contained in:
Jonas Jenwald 2015-01-29 13:37:49 +01:00
parent 846eb967cc
commit 2dc1af8028
6 changed files with 83 additions and 63 deletions
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8
web/presentation_mode.js
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@ -14,7 +14,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* globals scrollIntoView, HandTool, PDFViewerApplication */
/* globals scrollIntoView, PDFViewerApplication */
'use strict';
@ -23,6 +23,7 @@ var SELECTOR = 'presentationControls';
var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1000; // in ms
var PresentationMode = {
initialized: false,
active: false,
args: null,
contextMenuOpen: false,
@ -31,6 +32,7 @@ var PresentationMode = {
//#endif
initialize: function presentationModeInitialize(options) {
this.initialized = true;
this.container = options.container;
this.secondaryToolbar = options.secondaryToolbar;
@ -93,7 +95,7 @@ var PresentationMode = {
},
request: function presentationModeRequest() {
if (!PDFViewerApplication.supportsFullscreen || this.isFullscreen ||
if (!this.initialized || this.isFullscreen ||
!this.viewer.hasChildNodes()) {
return false;
}
@ -147,7 +149,6 @@ var PresentationMode = {
window.addEventListener('contextmenu', this.contextMenu, false);
this.showControls();
HandTool.enterPresentationMode();
this.contextMenuOpen = false;
this.container.setAttribute('contextmenu', 'viewerContextMenu');
@ -178,7 +179,6 @@ var PresentationMode = {
this.hideControls();
PDFViewerApplication.clearMouseScrollState();
HandTool.exitPresentationMode();
this.container.removeAttribute('contextmenu');
this.contextMenuOpen = false;