bookmark.js

ext.bookmarker = {
	get_content_type: function(url, finishcb)
	{
		if(url.match(/^https?:/))
		{
			var xhr = new XMLHttpRequest();
			xhr.open('GET', url, true);
			xhr.onreadystatechange = function()
			{
				if(xhr.readyState == 4)
				{
					var content_type = xhr.getResponseHeader('Content-Type');
					finishcb(content_type);
				}
			}
			xhr.send();
		}
		else if(url.match(/^file:/))
		{
			var type = 'text/html';
			if(url.match(/\.(jpe?g|gif|png|bmp)$/))
			{
				type = 'image/'+url.replace(/^.*\.(jpe?g|gif|png|bmp)$/, '$1');
			}
			(function() { finishcb(type); }).delay(0, this);
		}
		else
		{
			(function() { finishcb('text/html'); }).delay(0, this);
		}
	},

	scrape: function(options)
	{
		options || (options = {});

		var tab = null;
		var type = '';
		var do_bookmark = function(data)
		{
			var text = '';
			if(data.image && data.image != '')
			{
				text	+=	'![image]('+data.image+')  \n';
			}
			else if(data.desc)
			{
				text	+=	data.desc;
			}
			var linkdata = {
				title: type == 'image' ? '' : tab.title,
				url: tab.url,
				type: type,
				text: text
			};

			if(options.complete) options.complete(linkdata);
		};

		const bookmark_tab = function() {
			if(tab.url.match(/^chrome/))
			{
				type = 'link';
				do_bookmark({image: false});
			}
			else
			{
				ext.bookmarker.get_content_type(tab.url, function(content_type) {
					type = (content_type && content_type.match(/^image/)) ? 'image' : 'link';
					if(type == 'image')
					{
						do_bookmark({});
					}
					else
					{
						chrome.tabs.executeScript(tab.id, {file: 'data/bookmark.scrape.js'});
						chrome.runtime.onMessage.addListener(function(request, sender) {
							if(request.type != 'bookmark-scrape') return false;
							chrome.runtime.onMessage.removeListener(arguments.callee);
							setTimeout(function() { do_bookmark(request.data); }, 0);
							return false;
						});
					}
				});
			}
		};
		if(ext.activetab) {
			tab = ext.activetab;
			ext.activetab = null;
			bookmark_tab();
		} else {
			chrome.tabs.query({active: true, currentWindow: true}, function(tabs) {
				tab = tabs[0];
				bookmark_tab();
			});
		}
	}
};