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Refactor the OverlayManager to utilize async methods rather than manually returning Promises

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This commit is contained in:
Jonas Jenwald 2018-07-30 16:39:06 +02:00
parent b0fa02e845
commit 64e70fc16f
1 changed files with 48 additions and 59 deletions
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107
web/overlay_manager.js
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@ -37,22 +37,20 @@ class OverlayManager {
* @returns {Promise} A promise that is resolved when the overlay has been
* registered.
*/
register(name, element, callerCloseMethod = null, canForceClose = false) {
return new Promise((resolve) => {
let container;
if (!name || !element || !(container = element.parentNode)) {
throw new Error('Not enough parameters.');
} else if (this._overlays[name]) {
throw new Error('The overlay is already registered.');
}
this._overlays[name] = {
element,
container,
callerCloseMethod,
canForceClose,
};
resolve();
});
async register(name, element, callerCloseMethod = null,
canForceClose = false) {
let container;
if (!name || !element || !(container = element.parentNode)) {
throw new Error('Not enough parameters.');
} else if (this._overlays[name]) {
throw new Error('The overlay is already registered.');
}
this._overlays[name] = {
element,
container,
callerCloseMethod,
canForceClose,
};
}
/**
@ -60,16 +58,13 @@ class OverlayManager {
* @returns {Promise} A promise that is resolved when the overlay has been
* unregistered.
*/
unregister(name) {
return new Promise((resolve) => {
if (!this._overlays[name]) {
throw new Error('The overlay does not exist.');
} else if (this._active === name) {
throw new Error('The overlay cannot be removed while it is active.');
}
delete this._overlays[name];
resolve();
});
async unregister(name) {
if (!this._overlays[name]) {
throw new Error('The overlay does not exist.');
} else if (this._active === name) {
throw new Error('The overlay cannot be removed while it is active.');
}
delete this._overlays[name];
}
/**
@ -77,26 +72,23 @@ class OverlayManager {
* @returns {Promise} A promise that is resolved when the overlay has been
* opened.
*/
open(name) {
return new Promise((resolve) => {
if (!this._overlays[name]) {
throw new Error('The overlay does not exist.');
} else if (this._active) {
if (this._overlays[name].canForceClose) {
this._closeThroughCaller();
} else if (this._active === name) {
throw new Error('The overlay is already active.');
} else {
throw new Error('Another overlay is currently active.');
}
async open(name) {
if (!this._overlays[name]) {
throw new Error('The overlay does not exist.');
} else if (this._active) {
if (this._overlays[name].canForceClose) {
this._closeThroughCaller();
} else if (this._active === name) {
throw new Error('The overlay is already active.');
} else {
throw new Error('Another overlay is currently active.');
}
this._active = name;
this._overlays[this._active].element.classList.remove('hidden');
this._overlays[this._active].container.classList.remove('hidden');
}
this._active = name;
this._overlays[this._active].element.classList.remove('hidden');
this._overlays[this._active].container.classList.remove('hidden');
window.addEventListener('keydown', this._keyDownBound);
resolve();
});
window.addEventListener('keydown', this._keyDownBound);
}
/**
@ -104,22 +96,19 @@ class OverlayManager {
* @returns {Promise} A promise that is resolved when the overlay has been
* closed.
*/
close(name) {
return new Promise((resolve) => {
if (!this._overlays[name]) {
throw new Error('The overlay does not exist.');
} else if (!this._active) {
throw new Error('The overlay is currently not active.');
} else if (this._active !== name) {
throw new Error('Another overlay is currently active.');
}
this._overlays[this._active].container.classList.add('hidden');
this._overlays[this._active].element.classList.add('hidden');
this._active = null;
async close(name) {
if (!this._overlays[name]) {
throw new Error('The overlay does not exist.');
} else if (!this._active) {
throw new Error('The overlay is currently not active.');
} else if (this._active !== name) {
throw new Error('Another overlay is currently active.');
}
this._overlays[this._active].container.classList.add('hidden');
this._overlays[this._active].element.classList.add('hidden');
this._active = null;
window.removeEventListener('keydown', this._keyDownBound);
resolve();
});
window.removeEventListener('keydown', this._keyDownBound);
}
/**