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460 lines
11 KiB
460 lines
11 KiB
/*globals $, svgEditor, svgedit, svgCanvas, DOMParser*/ |
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/*jslint vars: true, eqeq: true, es5: true, todo: true */ |
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/* |
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* ext-imagelib.js |
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* |
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* Licensed under the MIT License |
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* |
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* Copyright(c) 2010 Alexis Deveria |
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* |
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*/ |
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svgEditor.addExtension("imagelib", function() {'use strict'; |
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var uiStrings = svgEditor.uiStrings; |
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$.extend(uiStrings, { |
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imagelib: { |
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select_lib: 'Select an image library', |
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show_list: 'Show library list', |
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import_single: 'Import single', |
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import_multi: 'Import multiple', |
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open: 'Open as new document' |
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} |
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}); |
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var img_libs = [{ |
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name: 'Demo library (local)', |
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url: svgEditor.curConfig.extPath + 'imagelib/index.html', |
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description: 'Demonstration library for SVG-edit on this server' |
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}, |
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{ |
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name: 'IAN Symbol Libraries', |
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url: 'http://ian.umces.edu/symbols/catalog/svgedit/album_chooser.php', |
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description: 'Free library of illustrations' |
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} |
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]; |
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function closeBrowser() { |
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$('#imgbrowse_holder').hide(); |
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} |
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function importImage(url) { |
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var newImage = svgCanvas.addSvgElementFromJson({ |
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"element": "image", |
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"attr": { |
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"x": 0, |
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"y": 0, |
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"width": 0, |
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"height": 0, |
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"id": svgCanvas.getNextId(), |
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"style": "pointer-events:inherit" |
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} |
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}); |
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svgCanvas.clearSelection(); |
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svgCanvas.addToSelection([newImage]); |
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svgCanvas.setImageURL(url); |
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} |
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var mode = 's'; |
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var multi_arr = []; |
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var cur_meta; |
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var tranfer_stopped = false; |
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var pending = {}; |
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var preview, submit; |
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window.addEventListener("message", function(evt) { |
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// Receive postMessage data |
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var response = evt.data; |
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if (!response || typeof response !== "string") { // Todo: Should namespace postMessage API for this extension and filter out here |
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// Do nothing |
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return; |
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} |
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try { // This block can be removed if embedAPI moves away from a string to an object (if IE9 support not needed) |
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var res = JSON.parse(response); |
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if (res.namespace) { // Part of embedAPI communications |
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return; |
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} |
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} |
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catch (e) {} |
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var char1 = response.charAt(0); |
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var id; |
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var svg_str; |
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var img_str; |
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if (char1 != "{" && tranfer_stopped) { |
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tranfer_stopped = false; |
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return; |
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} |
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if (char1 == '|') { |
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var secondpos = response.indexOf('|', 1); |
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id = response.substr(1, secondpos-1); |
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response = response.substr(secondpos+1); |
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char1 = response.charAt(0); |
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} |
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// Hide possible transfer dialog box |
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$('#dialog_box').hide(); |
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var entry, cur_meta; |
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switch (char1) { |
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case '{': |
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// Metadata |
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tranfer_stopped = false; |
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cur_meta = JSON.parse(response); |
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pending[cur_meta.id] = cur_meta; |
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var name = (cur_meta.name || 'file'); |
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var message = uiStrings.notification.retrieving.replace('%s', name); |
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if (mode != 'm') { |
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$.process_cancel(message, function() { |
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tranfer_stopped = true; |
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// Should a message be sent back to the frame? |
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$('#dialog_box').hide(); |
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}); |
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} else { |
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entry = $('<div>' + message + '</div>').data('id', cur_meta.id); |
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preview.append(entry); |
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cur_meta.entry = entry; |
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} |
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return; |
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case '<': |
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svg_str = true; |
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break; |
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case 'd': |
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if (response.indexOf('data:image/svg+xml') === 0) { |
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var pre = 'data:image/svg+xml;base64,'; |
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var src = response.substring(pre.length); |
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response = svgedit.utilities.decode64(src); |
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svg_str = true; |
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break; |
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} else if (response.indexOf('data:image/') === 0) { |
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img_str = true; |
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break; |
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} |
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// Else fall through |
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default: |
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// TODO: See if there's a way to base64 encode the binary data stream |
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// var str = 'data:;base64,' + svgedit.utilities.encode64(response, true); |
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// Assume it's raw image data |
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// importImage(str); |
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// Don't give warning as postMessage may have been used by something else |
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if (mode !== 'm') { |
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closeBrowser(); |
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} else { |
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pending[id].entry.remove(); |
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} |
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// $.alert('Unexpected data was returned: ' + response, function() { |
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// if (mode !== 'm') { |
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// closeBrowser(); |
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// } else { |
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// pending[id].entry.remove(); |
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// } |
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// }); |
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return; |
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} |
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switch (mode) { |
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case 's': |
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// Import one |
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if (svg_str) { |
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svgCanvas.importSvgString(response); |
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} else if (img_str) { |
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importImage(response); |
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} |
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closeBrowser(); |
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break; |
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case 'm': |
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// Import multiple |
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multi_arr.push([(svg_str ? 'svg' : 'img'), response]); |
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var title; |
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cur_meta = pending[id]; |
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if (svg_str) { |
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if (cur_meta && cur_meta.name) { |
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title = cur_meta.name; |
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} else { |
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// Try to find a title |
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var xml = new DOMParser().parseFromString(response, 'text/xml').documentElement; |
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title = $(xml).children('title').first().text() || '(SVG #' + response.length + ')'; |
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} |
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if (cur_meta) { |
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preview.children().each(function() { |
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if ($(this).data('id') == id) { |
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if (cur_meta.preview_url) { |
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$(this).html('<img src="' + cur_meta.preview_url + '">' + title); |
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} else { |
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$(this).text(title); |
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} |
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submit.removeAttr('disabled'); |
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} |
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}); |
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} else { |
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preview.append('<div>'+title+'</div>'); |
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submit.removeAttr('disabled'); |
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} |
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} else { |
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if (cur_meta && cur_meta.preview_url) { |
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title = cur_meta.name || ''; |
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} |
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if (cur_meta && cur_meta.preview_url) { |
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entry = '<img src="' + cur_meta.preview_url + '">' + title; |
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} else { |
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entry = '<img src="' + response + '">'; |
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} |
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if (cur_meta) { |
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preview.children().each(function() { |
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if ($(this).data('id') == id) { |
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$(this).html(entry); |
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submit.removeAttr('disabled'); |
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} |
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}); |
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} else { |
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preview.append($('<div>').append(entry)); |
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submit.removeAttr('disabled'); |
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} |
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} |
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break; |
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case 'o': |
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// Open |
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if (!svg_str) {break;} |
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svgEditor.openPrep(function(ok) { |
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if (!ok) {return;} |
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svgCanvas.clear(); |
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svgCanvas.setSvgString(response); |
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// updateCanvas(); |
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}); |
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closeBrowser(); |
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break; |
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} |
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}, true); |
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function toggleMulti(show) { |
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$('#lib_framewrap, #imglib_opts').css({right: (show ? 200 : 10)}); |
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if (!preview) { |
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preview = $('<div id=imglib_preview>').css({ |
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position: 'absolute', |
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top: 45, |
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right: 10, |
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width: 180, |
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bottom: 45, |
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background: '#fff', |
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overflow: 'auto' |
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}).insertAfter('#lib_framewrap'); |
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submit = $('<button disabled>Import selected</button>') |
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.appendTo('#imgbrowse') |
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.on("click touchend", function() { |
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$.each(multi_arr, function(i) { |
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var type = this[0]; |
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var data = this[1]; |
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if (type == 'svg') { |
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svgCanvas.importSvgString(data); |
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} else { |
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importImage(data); |
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} |
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svgCanvas.moveSelectedElements(i*20, i*20, false); |
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}); |
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preview.empty(); |
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multi_arr = []; |
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$('#imgbrowse_holder').hide(); |
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}).css({ |
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position: 'absolute', |
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bottom: 10, |
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right: -10 |
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}); |
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} |
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preview.toggle(show); |
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submit.toggle(show); |
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} |
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function showBrowser() { |
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var browser = $('#imgbrowse'); |
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if (!browser.length) { |
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$('<div id=imgbrowse_holder><div id=imgbrowse class=toolbar_button>\ |
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</div></div>').insertAfter('#svg_docprops'); |
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browser = $('#imgbrowse'); |
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var all_libs = uiStrings.imagelib.select_lib; |
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var lib_opts = $('<ul id=imglib_opts>').appendTo(browser); |
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var frame = $('<iframe/>').prependTo(browser).hide().wrap('<div id=lib_framewrap>'); |
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var header = $('<h1>').prependTo(browser).text(all_libs).css({ |
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position: 'absolute', |
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top: 0, |
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left: 0, |
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width: '100%' |
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}); |
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var cancel = $('<button>' + uiStrings.common.cancel + '</button>') |
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.appendTo(browser) |
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.on("click touchend", function() { |
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$('#imgbrowse_holder').hide(); |
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}).css({ |
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position: 'absolute', |
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top: 5, |
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right: -10 |
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}); |
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var leftBlock = $('<span>').css({position:'absolute',top:5,left:10}).appendTo(browser); |
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var back = $('<button hidden>' + uiStrings.imagelib.show_list + '</button>') |
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.appendTo(leftBlock) |
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.on("click touchend", function() { |
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frame.attr('src', 'about:blank').hide(); |
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lib_opts.show(); |
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header.text(all_libs); |
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back.hide(); |
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}).css({ |
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'margin-right': 5 |
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}).hide(); |
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var type = $('<select><option value=s>' + |
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uiStrings.imagelib.import_single + '</option><option value=m>' + |
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uiStrings.imagelib.import_multi + '</option><option value=o>' + |
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uiStrings.imagelib.open + '</option></select>').appendTo(leftBlock).change(function() { |
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mode = $(this).val(); |
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switch (mode) { |
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case 's': |
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case 'o': |
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toggleMulti(false); |
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break; |
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case 'm': |
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// Import multiple |
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toggleMulti(true); |
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break; |
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} |
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}).css({ |
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'margin-top': 10 |
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}); |
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cancel.prepend($.getSvgIcon('cancel', true)); |
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back.prepend($.getSvgIcon('tool_imagelib', true)); |
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$.each(img_libs, function(i, opts) { |
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$('<li>') |
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.appendTo(lib_opts) |
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.text(opts.name) |
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.on("click touchend", function() { |
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frame.attr('src', opts.url).show(); |
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header.text(opts.name); |
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lib_opts.hide(); |
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back.show(); |
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}).append('<span>' + opts.description + '</span>'); |
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}); |
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} else { |
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$('#imgbrowse_holder').show(); |
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} |
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} |
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return { |
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svgicons: svgEditor.curConfig.extPath + "ext-imagelib.xml", |
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buttons: [{ |
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id: "tool_imagelib", |
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type: "app_menu", // _flyout |
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position: 4, |
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title: "Image library", |
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events: { |
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"mouseup": showBrowser |
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} |
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}], |
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callback: function() { |
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$('<style>').text('\ |
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#imgbrowse_holder {\ |
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position: absolute;\ |
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top: 0;\ |
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left: 0;\ |
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width: 100%;\ |
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height: 100%;\ |
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background-color: rgba(0, 0, 0, .5);\ |
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z-index: 5;\ |
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}\ |
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\ |
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#imgbrowse {\ |
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position: absolute;\ |
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top: 25px;\ |
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left: 25px;\ |
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right: 25px;\ |
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bottom: 25px;\ |
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min-width: 300px;\ |
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min-height: 200px;\ |
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background: #B0B0B0;\ |
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border: 1px outset #777;\ |
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}\ |
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#imgbrowse h1 {\ |
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font-size: 20px;\ |
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margin: .4em;\ |
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text-align: center;\ |
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}\ |
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#lib_framewrap,\ |
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#imgbrowse > ul {\ |
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position: absolute;\ |
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top: 45px;\ |
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left: 10px;\ |
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right: 10px;\ |
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bottom: 10px;\ |
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background: white;\ |
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margin: 0;\ |
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padding: 0;\ |
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}\ |
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#imgbrowse > ul {\ |
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overflow: auto;\ |
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}\ |
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#imgbrowse > div {\ |
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border: 1px solid #666;\ |
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}\ |
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#imglib_preview > div {\ |
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padding: 5px;\ |
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font-size: 12px;\ |
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}\ |
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#imglib_preview img {\ |
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display: block;\ |
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margin: 0 auto;\ |
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max-height: 100px;\ |
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}\ |
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#imgbrowse li {\ |
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list-style: none;\ |
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padding: .5em;\ |
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background: #E8E8E8;\ |
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border-bottom: 1px solid #B0B0B0;\ |
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line-height: 1.2em;\ |
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font-style: sans-serif;\ |
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}\ |
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#imgbrowse li > span {\ |
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color: #666;\ |
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font-size: 15px;\ |
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display: block;\ |
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}\ |
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#imgbrowse li:hover {\ |
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background: #FFC;\ |
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cursor: pointer;\ |
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}\ |
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#imgbrowse iframe {\ |
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width: 100%;\ |
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height: 100%;\ |
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border: 0;\ |
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}\ |
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').appendTo('head'); |
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} |
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}; |
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}); |
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