public void RemoveQuery(MediaQuery mediaQuery)
{
bool byMediaProperties(MediaQueryCache q) => q.Value.Media == mediaQuery.InternalMedia.Media;
var cache = mediaQueries.Find(byMediaProperties);
if (cache != null)
{
cache.MediaQueries.Remove(mediaQuery);
if (cache.MediaQueries.Count() == 0)
{
Js.InvokeVoidAsync($"{ns}.removeMediaQuery", DotNetInstance, mediaQuery.InternalMedia.Media);
mediaQueries.Remove(cache);
}
}
}
public void AddQuery(MediaQuery newMediaQuery)
{
bool byMediaProperties(MediaQueryCache q) => q.MediaRequested == newMediaQuery.Media;
var cache = mediaQueries.Find(byMediaProperties);
if (cache == null)
{
cache = new MediaQueryCache
{
MediaRequested = newMediaQuery.Media,
};
mediaQueries.Add(cache);
}
cache.MediaQueries.Add(newMediaQuery);
}
public async Task Initialize(MediaQuery mediaQuery)
{
if (mediaQuery?.Media == null)
{
return;
}
var cache = GetMediaQueryFromCache(byMedia: mediaQuery.Media);
if (cache == null)
{
return;
}
if (cache.Value == null)
{
// If we don't flag the cache as loading, duplicate requests will be sent async.
// Duplicate requests = poor performance, esp with web sockets.
if (!cache.Loading)
{
cache.Loading = true;
var module = await moduleTask.Value;
var task = module.InvokeAsync <MediaQueryArgs>($"addMediaQueryToList", DotNetInstance, cache.MediaRequested);
cache.Value = await task;
cache.Loading = task.IsCompleted;
// When loading is complete dispatch an update to all subscribers.
foreach (var item in cache.MediaQueries)
{
item.MediaQueryChanged(cache.Value);
}
}
}
else
{
var module = await moduleTask.Value;
var task = module.InvokeAsync <MediaQueryArgs>($"getMediaQueryArgs", cache.MediaRequested);
cache.Value = await task;
mediaQuery.MediaQueryChanged(cache.Value);
}
}
public async Task Initialize(MediaQuery mediaQuery)
{
bool byMediaProperties(MediaQueryCache q) => q.MediaRequested == mediaQuery.Media;
var cache = mediaQueries.Find(byMediaProperties);
if (cache.Value == null)
{
if (!cache.Loading)
{
cache.Loading = true;
var task = Js.InvokeAsync <MediaQueryArgs>($"{ns}.addMediaQueryToList", DotNetInstance, cache.MediaRequested);
cache.Value = await task;
cache.Loading = task.IsCompleted;
foreach (var item in cache.MediaQueries)
{
item.MediaQueryChanged(cache.Value);
}
}
}
}
public async Task RemoveQuery(MediaQuery mediaQuery)
{
if (mediaQuery == null)
{
return;
}
var cache = GetMediaQueryFromCache(byMedia: mediaQuery.Media);
if (cache == null)
{
return;
}
cache.MediaQueries.Remove(mediaQuery);
if (cache.MediaQueries.Any())
{
mediaQueries.Remove(cache);
var module = await moduleTask.Value;
await module.InvokeVoidAsync($"removeMediaQuery", DotNetInstance, mediaQuery.InternalMedia.Media);
}
}
public async Task Initialize(MediaQuery mediaQuery) => await MqService.Initialize(mediaQuery);
public async Task RemoveQuery(MediaQuery mediaQuery) => await MqService.RemoveQuery(mediaQuery);
public void AddQuery(MediaQuery newMediaQuery) => MqService.AddQuery(newMediaQuery);