59 lines
1.7 KiB
JavaScript
59 lines
1.7 KiB
JavaScript
/*
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* Copyright 2016 Michael Gratton <mike@vee.net>
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*
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* This software is licensed under the GNU Lesser General Public License
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* (version 2.1 or later). See the COPYING file in this distribution.
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*/
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/**
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* Application logic for ClientWebView and subclasses.
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*/
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let PageState = function() {
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this.init.apply(this, arguments);
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};
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PageState.prototype = {
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init: function() {
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this.allowRemoteImages = false;
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this.isLoaded = false;
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let state = this;
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let timeoutId = window.setInterval(function() {
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state.preferredHeightChanged();
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if (state.isLoaded) {
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window.clearTimeout(timeoutId);
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}
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}, 50);
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},
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getPreferredHeight: function() {
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return window.document.documentElement.offsetHeight;
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},
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loaded: function() {
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this.isLoaded = true;
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},
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loadRemoteImages: function() {
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this.allowRemoteImages = true;
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let images = document.getElementsByTagName("IMG");
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for (let i = 0; i < images.length; i++) {
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let img = images.item(i);
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let src = img.src;
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img.src = "";
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img.src = src;
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}
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},
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remoteImageLoadBlocked: function() {
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window.webkit.messageHandlers.remoteImageLoadBlocked.postMessage(null);
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},
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preferredHeightChanged: function() {
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let height = this.getPreferredHeight();
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if (height > 0) {
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window.webkit.messageHandlers.preferredHeightChanged.postMessage(
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height
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);
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}
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},
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selectionChanged: function() {
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let hasSelection = !window.getSelection().isCollapsed;
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window.webkit.messageHandlers.selectionChanged.postMessage(hasSelection);
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}
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};
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