topoSprite.js
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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
ONOS GUI -- Topology Sprite Module.
Defines behavior for loading sprites into the sprite layer.
*/
(function () {
'use strict';
// injected refs
var $log, $http, fs, gs, sus, wss;
var tssid = 'TopoSpriteService: ';
// internal state
var spriteLayer, defsElement;
function registerPathsAsGlyphs(paths) {
var custom = {},
ids = [];
function mkd(d) {
return fs.isA(d) ? d.join('') : d;
}
if (paths) {
paths.forEach(function (path) {
var tag = 'spr_' + path.tag;
custom['_' + tag] = path.viewbox || '0 0 1000 1000';
custom[tag] = mkd(path.d);
ids.push(tag);
});
gs.registerGlyphs(custom);
gs.loadDefs(defsElement, ids, true);
}
}
function labAttr(def) {
var dim = def.dim || [1000,1000],
w = dim[0],
h = dim[1],
dy = def.labelyoff || 1;
return { x: w / 2, y: h * dy };
}
function doSprite(spr, def) {
var c = spr.class || 'gray1',
p = spr.pos || [0,0],
lab = spr.label,
dim = def.dim || [1000,1000],
w = dim[0],
h = dim[1],
use = def.glyph || 'spr_' + def.path,
g = spriteLayer.append('g')
.classed(c, true)
.attr('transform', sus.translate(p));
g.append('use').attr({
width: w,
height: h,
'xlink:href': '#' + use
});
if (lab) {
g.append('text')
.text(lab)
.attr(labAttr(def));
}
}
function doLabel(label) {
var c = label.class || 'gray1',
p = label.pos || [0,0];
spriteLayer.append('text')
.text(label.text)
.attr('transform', sus.translate(p))
.classed(c, true);
}
// ==========================
// event handlers
// Handles response from 'spriteListRequest' which lists all the
// registered sprite definitions on the server.
// (see onos-upload-sprites)
function inList(payload) {
$log.debug(tssid + 'Registered sprite definitions:', payload.names);
// Some day, we will make this list available to the user in
// a dropdown selection box...
}
// Handles response from 'spriteDataRequest' which provides the
// data for the requested sprite definition.
function inData(payload) {
var data = payload.data,
name, desc, sprites, labels,
paths = {},
defs = {};
if (!data) {
$log.warn(tssid + 'No sprite data loaded.')
return;
}
name = data.defn_name;
desc = data.defn_desc;
$log.debug("Loading sprites...[" + name + "]", desc);
registerPathsAsGlyphs(data.paths);
if (data.defn) {
data.defn.forEach(function (d) {
defs[d.id] = d;
});
}
// pull out the sprite and label items
if (data.load) {
sprites = data.load.sprites;
labels = data.load.labels;
}
if (sprites) {
sprites.forEach(function (spr) {
doSprite(spr, defs[spr.id]);
});
}
if (labels) {
labels.forEach(doLabel);
}
}
function loadSprites(layer, defsElem, defname) {
var name = defname || 'sprites';
spriteLayer = layer;
defsElement = defsElem;
$log.info(tssid + 'Requesting sprite definition ['+name+']...');
wss.sendEvent('spriteListRequest');
wss.sendEvent('spriteDataRequest', {name: name});
}
// === -----------------------------------------------------
// === MODULE DEFINITION ===
angular.module('ovTopo')
.factory('TopoSpriteService',
['$log', '$http', 'FnService', 'GlyphService',
'SvgUtilService', 'WebSocketService',
function (_$log_, _$http_, _fs_, _gs_, _sus_, _wss_) {
$log = _$log_;
$http = _$http_;
fs = _fs_;
gs = _gs_;
sus = _sus_;
wss = _wss_;
return {
loadSprites: loadSprites,
spriteListResponse: inList,
spriteDataResponse: inData
};
}]);
}());