openmedialibrary/static/js/URL.js

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JavaScript
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'use strict';
oml.URL = (function() {
var self = {}, that = {};
function getHash(state, callback) {
callback();
}
function getItem(state, string, callback) {
oml.api.get({id: string, keys: ['id']}, function(result) {
if (result.status.code == 200) {
state.item = result.data.id;
}
callback();
});
}
function getPart(state, string, callback) {
var parts = Ox.getObjectById(oml.config.pages, state.page).parts || [];
if (Ox.contains(parts, string)) {
state.part = string;
}
callback();
}
function getSort(state, value, callback) {
callback();
}
function getSpan(state, value, callback) {
callback();
}
// translates UI settings to URL state
function getState() {
var state = {},
ui = oml.user.ui;
if (ui.page) {
state.page = ui.page;
if (Ox.contains(Object.keys(oml.config.user.ui.part), state.page)) {
state.part = ui.part[state.page];
}
} else {
state.type = ui.section;
state.item = ui.item;
if (ui.section == 'books') {
if (!ui.item) {
state.view = ui.listView;
state.sort = [ui.listSort[0]];
state.find = ui.find;
} else {
state.view = ui.itemView;
if (ui.itemView == 'book') {
state.span = ui.mediaState[state.item] || [0, 1];
}
}
}
}
return state;
}
function getURLOptions() {
var sortKeys = {},
ui = oml.user.ui,
views = {};
views['books'] = {
// ui.listView is the default view
list: [ui.listView].concat(
oml.config.listViews.filter(function(view) {
return view.id != ui.listView;
}).map(function(view) {
return view.id;
})
),
// ui.itemView is the default view,
item: [ui.itemView].concat(
oml.config.itemViews.filter(function(view) {
return view.id != ui.itemView;
}).map(function(view) {
return view.id;
})
)
};
sortKeys['books'] = {list: {}, item: {}};
views['books'].list.forEach(function(view) {
sortKeys['books'].list[view] = [].concat(
// ui.listSort[0].key is the default sort key
Ox.getObjectById(oml.config.sortKeys, ui.listSort[0].key),
oml.config.sortKeys.filter(function(key) {
return key.id != ui.listSort[0].key;
})
);
});
return {
findKeys: [{id: 'list', type: 'string'}].concat(
oml.config.itemKeys
),
pages: oml.config.pages.map(function(page) {
return page.id;
}),
spanType: {
books: {
list: {},
item: {
book: 'FIXME, no idea'
}
}
},
sortKeys: sortKeys,
types: ['books'],
views: views
};
}
// translates URL state to UI settings
function setState(state, callback) {
var set = {},
ui = oml.user.ui;
ui._list = oml.getListState(ui.find);
ui._filterState = oml.getFilterState(ui.find);
ui._findState = oml.getFindState(ui.find);
if (Ox.isEmpty(state)) {
callback && callback();
} else {
if (state.page) {
set.page = state.page;
if (
Ox.contains(Object.keys(oml.config.user.ui.part), state.page)
&& state.part
) {
set['part.' + state.page] = state.part;
}
oml.UI.set(set);
callback && callback();
} else {
set.page = '';
if (state.type) {
set.section = state.type;
set.item = state.item;
}
if (set.section == 'books') {
if (state.view) {
set[!state.item ? 'listView' : 'itemView'] = state.view;
}
if (state.sort) {
set[!state.item ? 'listSort' : 'itemSort'] = state.sort;
}
if (state.span) {
if (state.view == 'book') {
set['mediaState.' + state.item] = {
position: state.span[0],
zoom: state.span[1]
};
}
}
if (!state.item) {
if (state.find) {
set.find = state.find;
} else if (!oml.$ui.appPanel) {
// when loading results without find, clear find, so that
// removing a query and reloading works as expected
set.find = oml.config.user.ui.find;
}
}
}
Ox.Request.cancel();
if (!oml.$ui.appPanel && state.item && ui.find) {
// on page load, if item is set and there was a query,
// we have to check if the item actually matches the query,
// and otherwise reset find
oml.api.find({
query: ui.find,
positions: [state.item],
sort: [{key: 'id', operator: ''}]
}, function(result) {
if (Ox.isUndefined(result.data.positions[state.item])) {
set.find = oml.config.user.ui.find
}
oml.UI.set(set);
callback && callback();
});
} else {
oml.UI.set(set);
callback && callback();
}
}
}
}
that.init = function() {
self.URL = Ox.URL(Ox.extend({
getHash: getHash,
getItem: getItem,
getPart: getPart,
getSort: getSort,
getSpan: getSpan,
}, getURLOptions()));
window.addEventListener('hashchange', function() {
Ox.Request.cancel();
that.parse();
});
window.addEventListener('popstate', function(e) {
Ox.Request.cancel();
self.isPopState = true;
$('.OxDialog:visible').each(function() {
Ox.UI.elements[$(this).data('oxid')].close();
});
if (e.state && !Ox.isEmpty(e.state)) {
document.title = Ox.decodeHTMLEntities(e.state.title);
setState(e.state);
} else {
that.parse();
}
});
return that;
};
// on page load, this sets the state from the URL
// can also be used to parse a URL
that.parse = function(url, callback) {
if (arguments.length == 2) {
self.URL.parse(url, callback);
} else {
callback = arguments[0];
url = null;
if (document.location.pathname.slice(0, 4) == 'url=') {
document.location.href = Ox.decodeURI(document.location.pathname.slice(4));
} else {
self.URL.parse(function(state) {
// setState -> UI.set -> URL.update
setState(state, callback);
});
}
}
return that;
};
// sets the URL to the previous URL
that.pop = function() {
self.URL.pop() || that.update();
return that;
};
// pushes a new URL (as string or from state)
that.push = function(stateOrURL, expandURL) {
var state,
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title = oml.getPageTitle(stateOrURL),
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url;
oml.replaceURL = expandURL;
if (Ox.isObject(stateOrURL)) {
state = stateOrURL;
} else {
url = stateOrURL;
}
self.URL.push(state, title, url, setState);
return that;
};
// replaces the current URL (as string or from state)
that.replace = function(stateOrURL, title) {
var state,
title = oml.getPageTitle(stateOrURL)
url;
if (Ox.isObject(stateOrURL)) {
state = stateOrURL;
} else {
url = stateOrURL;
}
self.URL.push(state, title, url, setState);
return that;
};
// this gets called from oml.UI
that.update = function(keys) {
var action, state;
if (keys.some(function(key) {
return Ox.contains(['itemView', 'listSort', 'listView'], key);
})) {
self.URL.options(getURLOptions());
}
if (self.isPopState) {
self.isPopState = false;
} else {
if (
!oml.$ui.appPanel
|| oml.replaceURL
|| keys.every(function(key) {
return Ox.contains([
'listColumnWidth', 'listColumns', 'listSelection'
], key) || /^mediaState/.test(key);
})
) {
action = 'replace';
} else {
action = 'push';
}
state = getState();
self.URL[action](
state,
oml.getPageTitle(state)
);
oml.replaceURL = false;
}
};
return that;
}());