CN102033778A - Thread processing method for control, analysis and composition of embedded browser - Google Patents
Thread processing method for control, analysis and composition of embedded browser Download PDFInfo
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Abstract
The invention discloses a thread processing method for control, analysis and composition of an embedded browser. In the embedded browser, the requirements of analysis, style calculation and composition on calculation are higher and higher; the occupied resources of a central processing unit, an internal memory and the like are more and more; and the defects of low webpage displaying speed and poor user experience caused by serialized webpage analysis, style calculation and composition mode exist. In the method, the control and the composition of the embedded browser are categorized into a main thread; resource loading and analysis are categorized into a secondary thread; the serialized webpage analysis and composition process are parallelized; scheduling management is performed according to the information types of the browser; and a multi-thread scheduling mode of an operating system is combined, so that the problem of poor user experience caused by single webpage analysis and low single-thread response efficiency of composition is solved and the aims of responding to user operation quickly and updating webpage display timely are fulfilled.
Description
Technical field
The invention belongs to the built-in browser technical field, particularly a kind of built-in browser control, the thread process method of resolving and setting type.
Background technology
Browser is a kind of client software based on HTML (Hypertext Markup Language), its major function is to download web page elements such as web document, picture, CSS (cascading style sheet) from the webserver, at first according to grammar explanation, the execution of these elements self, determine the layout of each element in webpage by calculating then, at last each element is outputed to screen and present to the user.The desktop browsers development has been tending towards ripe, and the built-in browser technology is just flourish.Because the restriction of resources such as embedded device CPU processing speed, storage space and power consumption, technology such as this resource downloading to built-in browser, parsing, composing have proposed challenge.
At present, when most of browsers are handled at the single-page webpage, to the loading section employing multithreading loading of Internet resources; Processing employing download, web page element parsing, structure DOM (DocumentObject Model) tree, calculating pattern, the composing of webpage is presented to the single-threaded serial processing process of screen.Along with enriching constantly of web page element, in built-in browser, parsing, pattern calculating and composing present the requirement of calculating more and more higher, and it is also more and more to take resources such as CPU, internal memory, causes web displaying speed slow, and user experience becomes worse and worse.
Summary of the invention
The objective of the invention is the single-threaded response efficiency difference of resolving, setting type and cause the relatively poor problem of user experience, the thread process method of proposed a kind of built-in browser control, resolving and setting type for the single-page that solves existing built-in browser.
To achieve these goals, technical scheme of the present invention is: the control of a kind of built-in browser, resolve the thread process method with composing, specific as follows: this method is divided into the main thread treatment step and from the thread process step, wherein,
A. main thread treatment step process user window events and webpage are set type and are presented;
B. load and dissection process from thread process step process web page resources.
Above-mentioned main thread treatment step is divided into following a few class to the message of handling to be handled:
A1. user's mouse or keyboard message are carried out mouse or keyboard message JS script;
A2. from thread webpage composing message, carrying out sets type calculates, and output has been set type webpage to screen;
A3. calculate pattern message from the thread webpage, calculate and renewal web displaying pattern.
Wherein, user's mouse or keyboard message are further divided into following a few class and are handled:
A11. send the web page resources loading messages to from thread: when needing the Web page loading resource, send the web page resources loading messages to from thread;
A12. carry out mouse or keyboard message JS script: during the No Assets load request, carry out mouse or keyboard message JS script; When the resource load request is arranged, send the resource loading messages and arrive from thread.
The above-mentioned message of handling from thread process step handle is divided into following a few class and handles:
B1. handle main thread web page resources loading messages, by network load-on module Web page loading resource;
B2. resolve data and structure webpage dom tree that network arrives.
Wherein, making up the webpage dom tree is further divided into following a few class and is handled:
B21. ask Internet resources to load: style sheet, picture etc. not to be downloaded the web page resources network requests join the request queue of network load-on module;
B22. need to set type: the operation of will setting type sends to main thread with form of message;
B23. need to calculate pattern: the pattern calculating operation is sent to main thread with form of message.
Further, the main thread treatment step comprises step by step following again:
Step 101: start browser, the initialization browser is created from thread, enters main thread, waits for receiving user's input and from Thread Messages, changeing step 102;
Step 102: check the main thread message queue,, change step 102 if empty; Otherwise, change step 103;
Step 103: handle the main thread message queue;
Step 104: whether check processing controls and composing message,, change step 105 if need; Otherwise, change step 106;
Step 105: if mouse-keyboard message is handled mouse-keyboard message: if need the load networks resource, to sending loading messages from thread; Otherwise, carry out mouse-keyboard JS script, change step 102; If composing message, carrying out sets type outputs to screen, changes step 102; If calculate pattern message, carry out and calculate pattern, change step 102;
Step 106: check whether be that browser withdraws from message,, change step 102 if not browser withdraws from message; Otherwise, change step 107;
Step 107: main thread is destroyed from resources such as thread, releasing memory, and browser withdraws from.
Further, comprise step by step following again from the thread process step:
Step 201: from the thread initialization, wait for main thread message, change step 202;
Step 202: check from thread message queue,, change step 202 if empty; Otherwise, change step 203;
Step 203: handle from thread message queue;
Step 204: check whether to handle and resolve and loading messages,, change step 205 if need; Otherwise, change step 207;
Step 205: if need to handle the web page resources loading messages, by changeing step 202 after the network load-on module loading resource; If need network data to arrive message, resolve network data and make up dom tree, change step 206;
Step 206: if need the load networks resource, the request Internet resources load, and change step 205; If need to set type, send composing message to main thread, change step 202; If need to calculate pattern, send and calculate pattern message to main thread, change step 202;
Step 207: check whether be that browser withdraws from message,, change step 202 if not browser withdraws from message; Otherwise, change step 208;
Step 208:, withdraw from from thread from resources such as thread releasing memory.
Beneficial effect of the present invention: the present invention is by being divided into main thread to built-in browser control and composing, resource loads and parsing is divided into from thread, the webpage of serial is resolved and the process of typeset parallelization, and carry out management and running according to the browser type of message, the multithread scheduling pattern of binding operation system, overcome the single-threaded response efficiency difference of single-page parsing, composing and caused the relatively poor problem of user experience, reached quick response user operation, the purpose of the web displaying that upgrades in time.
Description of drawings
Fig. 1 is the process flow diagram of treatment step of principal and subordinate's thread of built-in browser control, parsing and the composing framework of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention is further illustrated below in conjunction with drawings and Examples.
With the digital TV set-top box example below, the disposal route of the thread of specifically setting forth built-in browser control of the present invention, resolve and setting type.
Built-in browser of the present invention control, resolve that disposal route with the thread of composing is divided into the main thread treatment step and from the thread process step, specifically as shown in Figure 1, wherein,
A. main thread treatment step process user window events and webpage are set type and are presented;
B. load and dissection process from thread process step process web page resources.
Above-mentioned main thread treatment step is divided into following a few class to the message of handling to be handled:
A1. user's mouse or keyboard message are carried out mouse or keyboard message JS script;
A2. from thread webpage composing message, carrying out sets type calculates, and output has been set type webpage to screen;
A3. calculate pattern message from the thread webpage, calculate and renewal web displaying pattern.
Wherein, user's mouse or keyboard message are further divided into following a few class and are handled:
A11. send the web page resources loading messages to from thread: when needing the Web page loading resource, send the web page resources loading messages to from thread;
A12. carry out mouse or keyboard message JS script: during the No Assets load request, carry out mouse or keyboard message JS script; When the resource load request is arranged, send the resource loading messages and arrive from thread.
The above-mentioned message of handling from thread process step handle is divided into following a few class and handles:
B1. handle main thread web page resources loading messages, by network load-on module Web page loading resource;
B2. resolve data and structure webpage dom tree that network arrives.
Wherein, making up the webpage dom tree is further divided into following a few class and is handled:
B21. ask Internet resources to load: style sheet, picture etc. not to be downloaded the web page resources network requests join the request queue of network load-on module;
B22. need to set type: the operation of will setting type sends to main thread with form of message;
B23. need to calculate pattern: the pattern calculating operation is sent to main thread with form of message.
As shown in Figure 1a, further, the main thread treatment step comprises step by step following again:
Step 101: start browser, the initialization browser is created from thread, enters main thread, waits for receiving user's input and from Thread Messages, changeing step 102;
Step 102: check the main thread message queue,, change step 102 if empty; Otherwise, change step 103;
Step 103: handle the main thread message queue;
Step 104: whether check processing controls and composing message,, change step 105 if need; Otherwise, change step 106;
Step 105: if mouse-keyboard message is handled mouse-keyboard message: if need the load networks resource, to sending loading messages from thread; Otherwise, carry out mouse-keyboard JS (JavaScript) script, change step 102; If composing message, carrying out sets type outputs to screen, changes step 102; If calculate pattern message, carry out and calculate pattern, change step 102;
Step 106: check whether be that browser withdraws from message,, change step 102 if not browser withdraws from message; Otherwise, change step 107;
Step 107: main thread is destroyed from resources such as thread, releasing memory, and browser withdraws from.
Shown in Fig. 1 b, further, comprise step by step following again from the thread process step:
Step 201: from the thread initialization, wait for main thread message, change step 202;
Step 202: check from thread message queue,, change step 202 if empty; Otherwise, change step 203;
Step 203: handle from thread message queue;
Step 204: check whether to handle and resolve and loading messages,, change step 205 if need; Otherwise, change step 207;
Step 205: if need to handle the web page resources loading messages, by changeing step 202 after the network load-on module loading resource; If need network data to arrive message, resolve network data and make up dom tree, change step 206;
Step 206: if need the load networks resource, the request Internet resources load, and change step 205; If need to set type, send composing message to main thread, change step 202; If need to calculate pattern, send and calculate pattern message to main thread, change step 202;
Step 207: check whether be that browser withdraws from message,, change step 202 if not browser withdraws from message; Otherwise, change step 208;
Step 208:, withdraw from from thread from resources such as thread releasing memory.
The present invention is by being divided into main thread to built-in browser control and composing, resource loads and parsing is divided into from thread, the webpage of serial is resolved and the process of typeset parallelization, and carry out management and running according to the browser type of message, the multithread scheduling pattern of binding operation system, overcome the single-threaded response efficiency difference of single-page parsing, composing and caused the relatively poor problem of user experience, reached quick response user operation, the purpose of the web displaying that upgrades in time.
Those of ordinary skill in the art will appreciate that embodiment described here is in order to help reader understanding's principle of the present invention, should to be understood that the protection domain of inventing is not limited to such special statement and embodiment.Everyly make various possible being equal to according to foregoing description and replace or change, all be considered to belong to the protection domain of claim of the present invention.
Claims (7)
1. built-in browser control, resolve the thread process method with composing, it is characterized in that, this method is divided into the main thread treatment step and from the thread process step, wherein,
A. main thread treatment step process user window events and webpage are set type and are presented;
B. load and dissection process from thread process step process web page resources.
2. built-in browser control according to claim 1, the thread process method of resolving and setting type is characterized in that, described main thread treatment step is divided into following a few class to the message of handling to be handled:
A1. user's mouse or keyboard message: carry out mouse or keyboard message JS script;
A2. from thread webpage composing message: carrying out sets type calculates, and output has been set type webpage to screen;
A3. calculate pattern message from the thread webpage: calculate and renewal web displaying pattern.
3. built-in browser control according to claim 2, the thread process method of resolving and setting type is characterized in that described user's mouse or keyboard message further are divided into following a few class and handle:
A11. send the web page resources loading messages to from thread: when needing the Web page loading resource, send the web page resources loading messages to from thread;
A12. carry out mouse or keyboard message JS script: during the No Assets load request, carry out mouse or keyboard message JS script; When the resource load request is arranged, send the resource loading messages and arrive from thread.
4. built-in browser according to claim 1 control, resolve and the thread process method of setting type, it is characterized in that, describedly from the thread process step message of processing is divided into following a few class and handles:
B1. handle main thread web page resources loading messages, by network load-on module Web page loading resource;
B2. resolve data and structure webpage dom tree that network arrives.
5. built-in browser control according to claim 4, the thread process method of resolving and setting type is characterized in that described structure webpage dom tree further is divided into following a few class to be handled:
B21. ask Internet resources to load: style sheet, picture etc. not to be downloaded the web page resources network requests join the request queue of network load-on module;
B22. need to set type: the operation of will setting type sends to main thread with form of message;
B23. need to calculate pattern: the pattern calculating operation is sent to main thread with form of message.
6. according to the thread process method of the described arbitrary built-in browser control of claim 1 to 5, parsing and composing, it is characterized in that described main thread treatment step comprises step by step following again:
Step 101: start browser, the initialization browser is created from thread, enters main thread, waits for receiving user's input and from Thread Messages, changeing step 102;
Step 102: check the main thread message queue,, change step 102 if empty; Otherwise, change step 103;
Step 103: handle the main thread message queue;
Step 104: whether check processing controls and composing message,, change step 105 if need; Otherwise, change step 106;
Step 105: if mouse-keyboard message is handled mouse-keyboard message: if need the load networks resource, to sending loading messages from thread; Otherwise, carry out mouse-keyboard JS script, change step 102; If composing message, carrying out sets type outputs to screen, changes step 102; If calculate pattern message, carry out and calculate pattern, change step 102;
Step 106: check whether be that browser withdraws from message,, change step 102 if not browser withdraws from message; Otherwise, change step 107;
Step 107: main thread is destroyed from resources such as thread, releasing memory, and browser withdraws from.
According to the described arbitrary built-in browser control of claim 1 to 5, resolve the thread process method with composing, it is characterized in that, describedly comprise step by step following again from the thread process step::
Step 201: from the thread initialization, wait for main thread message, change step 202;
Step 202: check from thread message queue,, change step 202 if empty; Otherwise, change step 203;
Step 203: handle from thread message queue;
Step 204: check whether to handle and resolve and loading messages,, change step 205 if need; Otherwise, change step 207;
Step 205: if need to handle the web page resources loading messages, by changeing step 202 after the network load-on module loading resource; If need network data to arrive message, resolve network data and make up dom tree, change step 206;
Step 206: if need the load networks resource, the request Internet resources load, and change step 205; If need to set type, send composing message to main thread, change step 202; If need to calculate pattern, send and calculate pattern message to main thread, change step 202;
Step 207: check whether be that browser withdraws from message,, change step 202 if not browser withdraws from message; Otherwise, change step 208;
Step 208:, withdraw from from thread from resources such as thread releasing memory.
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| CN110851756A (en) * | 2019-10-12 | 2020-02-28 | 平安普惠企业管理有限公司 | Page loading method and device, computer readable storage medium and terminal equipment |
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Application publication date: 20110427 |