vis.js is a dynamic, browser-based visualization library
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  1. /**
  2. * Prototype for visual components
  3. * @param {{dom: Object, domProps: Object, emitter: Emitter, range: Range}} [body]
  4. * @param {Object} [options]
  5. */
  6. function Component (body, options) {
  7. this.options = null;
  8. this.props = null;
  9. }
  10. /**
  11. * Set options for the component. The new options will be merged into the
  12. * current options.
  13. * @param {Object} options
  14. */
  15. Component.prototype.setOptions = function(options) {
  16. if (options) {
  17. util.extend(this.options, options);
  18. }
  19. };
  20. /**
  21. * Repaint the component
  22. * @return {boolean} Returns true if the component is resized
  23. */
  24. Component.prototype.redraw = function() {
  25. // should be implemented by the component
  26. return false;
  27. };
  28. /**
  29. * Destroy the component. Cleanup DOM and event listeners
  30. */
  31. Component.prototype.destroy = function() {
  32. // should be implemented by the component
  33. };
  34. /**
  35. * Test whether the component is resized since the last time _isResized() was
  36. * called.
  37. * @return {Boolean} Returns true if the component is resized
  38. * @protected
  39. */
  40. Component.prototype._isResized = function() {
  41. var resized = (this.props._previousWidth !== this.props.width ||
  42. this.props._previousHeight !== this.props.height);
  43. this.props._previousWidth = this.props.width;
  44. this.props._previousHeight = this.props.height;
  45. return resized;
  46. };