Method _resize

src/core/core.controller.js:277–302

(width, height)

  }

  _resize(width, height) {
    const options = this.options;
    const canvas = this.canvas;
    const aspectRatio = options.maintainAspectRatio && this.aspectRatio;
    const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio);
    const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio();
    const mode = this.width ? 'resize' : 'attach';

    this.width = newSize.width;
    this.height = newSize.height;
    this._aspectRatio = this.aspectRatio;
    if (!retinaScale(this, newRatio, true)) {
      return;
    }

    this.notifyPlugins('resize', {size: newSize});

    callCallback(options.onResize, [this, newSize], this);

    if (this.attached) {
      if (this._doResize(mode)) {
        // The resize update is delayed, only draw without updating.
        this.render();
      }
    }
  }

  ensureScalesHaveIDs() {
    const options = this.options;