| The Research on requirements that the embedded browser can support active web pages has been done in this paper. All research is based on that industry trends of informatization supported by network currently, and our daily life is permeated by embedded devices in all aspects.The paper contains two parts: first, supports of embedded browser to JavaScript are researched; second, supports of embedded browser to the display of Flash are researched. JavaScript, the client script language, is widely applied in current active web page, and many JavaScript codes are embeded in web page. Tops embedded browser is the basis of the design in this paper, combined the features of embedded environment with the system structure of Tops embedded browser, JavaScript processor crossing parser module and process module of Tops embedded browser is designed. The analyze and research of application and system structure according to SpiderMonkey engine, which is the basis of the parser engine designed, and flows of initialization and uninstall are also given in detail. This kind of design is in favor of simplifing the structure of browser codes, reducing the consumption of embedded hardware resources and improving the speed of browser. Browser client objects and JS objects are introduced, the structure space is created according to objects, methods and properties are defined in the object structure, the handle and response of events are achieved by quotes of event objects.In Flash part, according to the feature of embedded flash in web page, the plus-ins supporting Flash is designed with functions of parsing and processing. Downloading, processing and showing could be carried out in the module at the same time. In the module, the influence of network congestion to the display effect of Flash is weakened effectively, and the consumption of embedded hardware resources is reduced. |
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